ORP FOR CHEMICAL DOSAGE CONTROL IN METAL PRECIPITATION Kristine S. Siefert and Kerstin E. Lampert Nalco Chemical Company Naperville, Illinois

Size: px
Start display at page:

Download "ORP FOR CHEMICAL DOSAGE CONTROL IN METAL PRECIPITATION Kristine S. Siefert and Kerstin E. Lampert Nalco Chemical Company Naperville, Illinois"

Transcription

1 ORP FOR CHEMICAL DOSAGE CONTROL IN METAL PRECIPITATION Kristine S. Siefert and Kerstin E. Lampert Nalco Chemical Company Naperville, Illinois Oxidation Reduction Potential (ORP) probes are commonly used in the plating industry to automate control of cyanide destruction and chromium (VI) reduction processes.1 Response of ORP probes in these oxidation-reduction processes might be expected, but ORP response in metal ion precipitation processes is not obvious. Thus, the applicability of ORP probes for chemical dosage control was unknown for processes utilizing organic precipitant products for metal removal. The following describes a research study that was done to evaluate ORP probes as process sensors in Nalco Chemical Company's NalmetTM program. Backmound Oxidation-reduction reactions involve the transfer of electrons, since oxidation (the loss of electrons) and reduction (the gain of electrons) occur simultaneously. ORP probes measure the flow of electrons by providing an active electrode for electron exchange. The active electrode is typically platinum or gold, and a voltage difference or "potential" between it and a reference electrode is measured. ORP probes for industrial use are available from a number of suppliers, including Leeds and Northrup (North Wales, PA) and Great Lakes Instruments (Milwaukee, WI). Numerous components in metal-bearing wastewaters may be "active at the electrode", meaning that the ORP probe will measure a potential when one of these components is present. Among the active components are hydrated metal ions, chelated metal ions, organics (such as formaldehyde), strong oxidants (such as hypochlorite), and strong reducing agents (such as bisulfite). When several active components are present simultaneously, ORP measures a "mixed" potential, a composite of the potentials, though one particular component may dominate the measured potential. ORP probes cannot be construed as specific sensors for any single component when multiple active components are present. In general, ORP measurements are sensitive to fluctuations in process ph due to the involvement of hydrogen ions (H+) in either the reduction or oxidation reaction. An example of such a reduction reaction is shown below in Equation (1). The corresponding Nemst equation expressing the effect of concentration of reactants and products on the reduction potential (E) is shown in Equation (2)

2 0.5 Cr2m2 + 7H+ + 3 e- = Cr H20 (1) E= log[[cr+31/[cr~~210.5[h+17] (volts) (2) 3 Thus, a 1 unit fluctuation in ph would result in a change in potential of (2.33 x 59 mv) or 138 mv. The effect of ph on ORP measurements in other processes will depend on the involvement of hydrogen ion in the reaction and the number of electrons transferred. The lack of knowledge of the reactions occurring at the electrode during metal ion precipitation makes it impossible to predict ph effects on measured potentials. When contemplating product feed control strategies for metal precipitation, several key issues were considered. First, a sensor monitoring the process must respond to either the disappearance of metal ions or the appearance of excess precipitant. Second, the sensor has to be relatively insensitive to other components in the wastewater, such as chelants, surfactants, and solids, as these components may be present in metal-bearing wastewaters. The best control, i.e., minimal underfeed or overfeed, will be achieved if the sensor shows a marked response at the reaction equivalence point, the dosage where free metal ions are absent. Finally, process control will necessarily be different for batch and continuous processes. These issues were examined in the laboratory studies. Experimental Laboratory studies were conducted with industrial equipment: Great Lakes Instruments 5-wire ORP probe with a gold process electrode and Model 672R Analyzer. The analyzer unit has an LCD display and several outputs, including 4-20 ma and 0-5 V. The 0-5 V output was connected to a strip chart recorder, and the 4-20 ma output was available for proportional control of a feed pump. One-liter grab samples of wastewater were obtained and tested in a large crystallization dish in which the ORP probe was suspended. A large magnetic stir bar in the bottom of the dish provided mixing. A Horizon ph controller with a glass ph electrode and peristaltic pumps for both acid and base were used to control process ph, typically to 0.1 units. The precipitant product was delivered to the wastewater by a syringe pump calibrated for flow rate. The tests were batch treatments in which precipitant was gradually added over time, usually 30 to 45 minutes. ORP potential and ph were recorded by a strip chart recorder. Periodically, a small aliquot (-5 ml) of wastewater was withdrawn by syringe for subsequent metalsanakysis. The aliquots were filtered through 0.45 micron membrane filters, appropriately diluted, acidified, and analyzed for metals content. A Perkin-Elmer Model 306 Atomic Absorption Spectrophotometer was utilized for all metals analyses

3 Results and Discussion Printed Circuit Board: Plant #1 A wastewater sample from a printed circuit board plant with a continuous treatment process was tested. The wastewater initially contained 83 ppm of copper and had a ph of 1.4. Adjustment of sample ph to 8.0 with caustic resulted in soluble copper of 21 ppm, so the balance of copper in the untreated waste was non-chelated. The ORP study was conducted at ph 10, and approximately onehalf of the stoichiometric dosage of precipiant was-quickly added during ph adjustment to reduce hydroxide precipitation. The remaining preapitant was gradually pumped into the wastewater during the test. The test results with ORP potential in millivolts (mv) and soluble copper concentration in parts-permillion (ppm) plotted against precipitant dosage are shown in Figure 1. ORP potential decreased gradually with increasing precipitant dosage until a sharp drop of about 30 mv occurred, Seen as an inflection in the curve. Soluble copper decreased almost linearly with dosage, dropping to less than 0.1 ppm at a dosage corresponding to the bottom of the potential curve inflection. This marked response at the equivalence point suggests that good control is possible. In choosing possible setpoints for proportional control, -80 and -100 mv might be selected, since good removal of copper (4 ppm) and minimal product overfeed (<2%) were observed in the batch treatment. In a continuous treatment process, however, the presence of large amounts of precipitated metal might influence the ORP response, compared to batch treatment. Thus, control parameters should be verified on-site. Printed Circuit Board: Plant #2 A sample of wastewater was tested from a second printed circuit board plant that also has a continuous treatment process. The untreated sample contained 17 ppm of copper at ph 2.5. The results of the ORP test at ph 8.8 are shown in Figure 2. The ORP potential curve shows an inflection which is at much higher dosage than is appropriate for good copper removal. The use of the ORP potentials at the inflection for controller setpoints could result in about 40% overfeed of product. It is likely that this wastewater sample contains an interfering component that is also active at the electrode, such as an oxidant. Equalization of wastewater streams or removal of suspect streams from the continuous system might eliminate this interference. Zinc Plating: Plant #3 A sample of wastewater was obtained from zinc plating operations. Initial zinc concentration was 12.5 ppm at ph 2.6. Adjustment of sample ph to 10 caused all of the Zn to precipitate, i.e., the Zn was not chelated. To allow testing of a wastewater having chelated zinc, sodium citrate was added. Citrate ion is a relatively strong chelant that can be displaced from Zn by the precipitant product

4 Twelve ppm of Zn was ultimately chelated. An ORP test at ph 8 was conducted, and the results are shown in Figure 3. Zinc concentration with precipitant dosage eventually decreased to about 0.3 ppm, though three times the stoichiometric dosage was required. This precipitant usage reflects the relative strength of the Zn-citrate complex. While the ORP potential also declined with dosage, no particular response was observed at the equivalence point, i.e., the ORP was insensitive to the disappearance of Zn. Selection of another chelant for this wastewater test may have produced different results, since chelant type influences the reduction potential of metal ions in solution.2 Effect of DH on Cormer Removal: Svnthetic Wastewater #1 A synthetic copper-edta solution containing 24 ppm of chelated copper was tested at five phs: 8.0, 8.25,8.5,8.75,9.0. The results of the tests neur the equivalence point are summarized in Figure 4. Copper concentration decreased to ~0.1 ppm in all the tests at similar precipitant dosage. The ORP potential curves shifted somewhat with ph, though all have an inflection. Table 1 shows the effect of ph on dosage at ORP potential setpoints -60 and -80 mv. Except for the ph 8.25 test, the resulting copper concentrations were ~0.8 ppm with an overall dosage range of 2 4% of the mean dosage. These results indicate that ph is not a strong factor in ORP dosage control, at least for chelated copper. In actual wastewater, the presence of other active components might produce different ph effects. Table 1. Effect of ph on Dosage at Fixed ORP Setpoints (-60 & -80 mv) -60 mv -60 mv -80 mv -80 mv ph DosaPe Cu,uum Dosage Cu.p~m ND~ 338 ND o ND=non-detectable (<0.1 ppm) Mixed Metals. Comer and Nickel: Svnthetic Wastewater #2 A synthetic, chelated wastewater containing copper and nickel was prepared with sodium citrate. Initial copper and nickel concentrations were 16 and 23 ppm, respectively. An ORP test was conducted at ph 8.5. The results are shown in Figure 5. The ORP potential curve showed two inflections; the first corresponding to disappearance of copper and the second to nickel disappearance. The potential 4 312

5 curve inflection for copper was larger than that for nickel. These results suggest that ORP can be used for process control when these two active metals are present. Brass (Cu/Zn)Platine: Plant #4 Wastewater was provided from brass plating operations in which copper and zinc were chelated with cyanide before chlorine destruction. The resulting wastewater was strongly buffered at ph 8.5 and had 90 ppm of copper and 9 ppm of zinc. Normal treatment consisted of precipitant addition to the batch tank with water recirculation for mixing. An ORP test was conducted without ph adjustment or control, and the results are shown in Figure 6. As is typical of mixed metal wastes, copper was preferentially removed by the precipitant to c1 ppm before substantial zinc removal occurred. The ORP potential curve shows a strong inflection corresponding to the disappearance of copper and then a steady decline in potential with decreasing zinc concentration. Though ORP did respond to zinc removal, the potential curve simply leveled off at excessive precipitant dosage. This response could cause product dosage control to be more variable, compared to control at an inflection in the potential. A single set of ORP potential setpoints must be used for proportional control of this batch process, since both metals must be removed. Thus, these setpoints must correspond to Zn removal. Conclusions While metal ion precipitation is not a redox process, it appears that removal of certain metals can be accurately monitored with ORP probes. In laboratory studies, marked response of ORP was seen at the equivalence point (dosage corresponding to metal ion disappearance) for a copper-bearing wastewater, a synthetic copper-nickel wastewater, and a copper-zinc wastewater. No response was seen for a zinc wastewater that had been chelated with citrate ion. ORP responds to the disappearance of certain metal ions, such as copper and nickel, that are active at the electrode. The effect of ph on ORP response was observed for synthetic, chelated copper wastewater. The inflections in the ORP potential curves shifted somewhat with ph, but the effect on dosage at two fixed potential setpoints was minimal. Thus, there was little impact of ph on ORP response, though actual wastewater may contain other active components that ure affected by ph. The presence of an interference in one circuit board plating wastewater predicted severe product overfeed under ORP control. The need for waste stream equalization or removal of the suspect stream from the continuous process was suggested

6 Acknowledeements The authors wish to acknowledge - David Picco of Nalco Research for his capable work. References 1. Snowden. E Curtis and Bernard 1. Galetti, Oxidation-Reduction Potential: Theory and Application- to Plating-Waste Controls, ISA Trans., 7(4), 3049, Stumm, Werner and James J. Morgan, Aquatic Chemistry: An Introduction Emphasizing Chemical Equilibria in Natural Waters, John Wiley & Sons, Inc, New York, 36543,

7 ORP RESPONSE TO Cu REMOVAL ILLUSTRATING POSSIBLE CONTROL PARAMETERS (Figure 1) L -0- Pum cu -0- ORP mv OOSAGE (PPMI ORP RESPONSE TO CU REMOVAL ILLUSTRATING EFFECT OF INTERFERENCE (Figure 2) 300L M ool\ ORP mv I I m - I I I I -100 I, I 1 0 OOSAGE (PPM1 '. 4 ORP RESPONSE TO REMOVAL OF zn CHELATEO WITH CITRATE (Figure 3) 2 o z n L -0- ORP mv E -0- PPM ZN V E L DOSAGE loem1 31 5

8 ph EFFECT ON ORP RESPONSE FOR CHELATED Cu REMOVAL (Figure 4) V S k -0- ph A- ph V- DH ph PH OOSAGE lppm1 ORP RESPONSE TO w/ni REMOVAL FROM MIXED METAL WASTEWATER (Figure 5) P O P m M : L 1 2. " M -60 E t A L -140 S 0 T -0- ORP mv -0- PPm NI - A- Dum cu oo~aom (ppml M.OR --- ORP RESPONSE TO Cu/Zn REMOVAL FROM BRASS PLATING WASTEWATER (Figure 6) M E T A L S -0- orp mv -D- zn xi0 -A- ppm Cu

Wastewater Treatment: Reducing Salts Generated During Treatment to Promote Water Re-Use. By: David Calnan Cherokee Chemical Inc, (CCI)

Wastewater Treatment: Reducing Salts Generated During Treatment to Promote Water Re-Use. By: David Calnan Cherokee Chemical Inc, (CCI) Wastewater Treatment: Reducing Salts Generated During Treatment to Promote Water Re-Use By: David Calnan Cherokee Chemical Inc, (CCI) Objective Cost-effective effluent recovery utilizing chemical pre-treatment

More information

Removal of Chelated Metals

Removal of Chelated Metals Removal of Chelated Metals By Sultan Amer, Ph.D., and Ratana Kanluen, M.Sc. May 9, 2006 Heavy metals can and do combine with species such as cyanide, hydroxide, ammonia, EDTA, etc. to form metal complexes.

More information

ENVE 424 Anaerobic Treatment

ENVE 424 Anaerobic Treatment ENVE 424 Anaerobic Treatment Lecture 6 Toxic substances in anaerobic treatment 2012 2013 Fall 01 Nov 2012 Assist. Prof. A. Evren Tugtas Basic Fundamentals Inhibition Competitive Inhibition Uncompetitive

More information

Pharmaceutical Analytical Chemistry PHCM223 Lecture 12 Applications on different types of equilibria. Dr. Nesrine El Gohary 12 th lecture

Pharmaceutical Analytical Chemistry PHCM223 Lecture 12 Applications on different types of equilibria. Dr. Nesrine El Gohary 12 th lecture Pharmaceutical Analytical Chemistry PHCM223 Lecture 12 Applications on different types of equilibria Dr. Nesrine El Gohary 12 th lecture Revision lecture next week Next Saturday (21-5-2016) in the 1 st

More information

Challenges with Chelated &/or Complexed Minerals (Chelated and Soluble Methods of Analysis Used in FL)

Challenges with Chelated &/or Complexed Minerals (Chelated and Soluble Methods of Analysis Used in FL) Challenges with Chelated &/or Complexed Minerals (Chelated and Soluble Methods of Analysis Used in FL) Patty Lucas AAPFCO Laboratory Services Committee Meeting Friday, August 7, 2015 Fertilizer Sample

More information

By Authority Of THE UNITED STATES OF AMERICA Legally Binding Document

By Authority Of THE UNITED STATES OF AMERICA Legally Binding Document By Authority Of THE UNITED STATES OF AMERICA Legally Binding Document By the Authority Vested By Part 5 of the United States Code 552(a) and Part 1 of the Code of Regulations 51 the attached document has

More information

PtPt-electrode with temperature sensor, Intellical MTC695

PtPt-electrode with temperature sensor, Intellical MTC695 Total Chlorine DOC316.52.93092 Based on 4500-Cl D in Standard Methods for the Examination of Water and Wastewater Amperometric Forward Titration 0.003 5.00 mg/l as Cl 2 1. Introduction This application

More information

Zinc T mg/l Zn Zincon

Zinc T mg/l Zn Zincon Zinc T 0.02-1 mg/l Zn Zincon 400 Instrument specific information The test can be performed on the following devices. In addition, the required cuvette and the absorption range of the photometer are indicated.

More information

COLLOIDAL SILVER: WHERE DOES IT GO WHEN YOU DRINK IT? HOW LONG DOES IT STAY THERE?

COLLOIDAL SILVER: WHERE DOES IT GO WHEN YOU DRINK IT? HOW LONG DOES IT STAY THERE? COLLOIDAL SILVER: WHERE DOES IT GO WHEN YOU DRINK IT? HOW LONG DOES IT STAY THERE? Disclaimer This report is for informational purposes only. It is not meant to be a personal guide for colloidal silver

More information

Comparison of Oxalic Acid Cleaning Results at SRS and Hanford and the Impact on Enhanced Chemical Cleaning Deployment

Comparison of Oxalic Acid Cleaning Results at SRS and Hanford and the Impact on Enhanced Chemical Cleaning Deployment Comparison of Oxalic Acid Cleaning Results at SRS and Hanford and the Impact on Enhanced Chemical Cleaning Deployment ABSTRACT Renee H. Spires Edward Ketusky Savannah River Remediation Blaine Barton ington

More information

FACTORS AFFECTING WATER QUALITY

FACTORS AFFECTING WATER QUALITY TECHNICAL PAPER WATER QUALITY PLANT HEALTH FACTORS Water quality is one of the most important factors affecting plant growth, as unwanted components in water can interfere with nutrient availability and

More information

PURE BRAZIL BRAND PRODUCTS

PURE BRAZIL BRAND PRODUCTS PURE BRAZIL BRAND PRODUCTS WHAT ARE THE PURE BRAZIL BRAND PRODUCTS? PURE BRAZIL BRAND Essential Micronutrients contains eight micronutrient elements essential to plant growth and health. Five (calcium,

More information

It is recommended to use titanium coils. ph meter to control ph of the process. It is advised to use an automatic dosage for the maintenance products.

It is recommended to use titanium coils. ph meter to control ph of the process. It is advised to use an automatic dosage for the maintenance products. CRODA III Decorative Trivalent Chrome Process CRODA III is a hexavalent free chrome process, allowing to obtain slightly blue and bright deposits, optimal for decorative applications. ADVANTAGES Depuration

More information

THE INFLUENCE OF MINERALS ON THE STABILITY OF PREMIX AND FEED COMPONENTS

THE INFLUENCE OF MINERALS ON THE STABILITY OF PREMIX AND FEED COMPONENTS THE INFLUENCE OF MINERALS ON THE STABILITY OF PREMIX AND FEED COMPONENTS Richard Murphy Ph.D. Alltech European Bioscience Centre Ireland THE INFLUENCE OF MINERALS ON THE STABILITY OF PREMIX AND FEED COMPONENTS

More information

Hardness, Total, Sequential

Hardness, Total, Sequential Hardness, Total, Sequential DOC316.53.01159 Titration Method with EDTA 1,2 Method 8338 0 25,000 mg/l as CaCO 3 Buret Titration Scope and application: For water, wastewater and seawater. 1 USEPA accepted

More information

USER SPECIFICATIONS FOR QUINTOLUBRIC 888 Series DESCRIPTION OF THE MOST IMPORTANT PROPERTIES AND THE POSSIBLE VARIATIONS AND TOLERANCES

USER SPECIFICATIONS FOR QUINTOLUBRIC 888 Series DESCRIPTION OF THE MOST IMPORTANT PROPERTIES AND THE POSSIBLE VARIATIONS AND TOLERANCES USER SPECIFICATIONS FOR QUINTOLUBRIC 888 Series OVERVIEW The QUINTOLUBRIC 888 Series of fluids are based on a synthetic organic ester, which is the main base component, plus a number of selected additives

More information

Free Chlorine. Based on 4500-Cl D. in Standard Methods for the Examination of Water and Wastewater DOC

Free Chlorine. Based on 4500-Cl D. in Standard Methods for the Examination of Water and Wastewater DOC Free Chlorine DOC316.52.93093 Based on 4500-Cl D. in Standard Methods for the Examination of Water and Wastewater Amperometric Forward Titration 0.100 5.000 mg/l as Cl2 This application note covers the

More information

Fertilizer Compatibility. Raun Lohry Terry Robinson Doyle Meeker

Fertilizer Compatibility. Raun Lohry Terry Robinson Doyle Meeker Fertilizer Compatibility Raun Lohry Terry Robinson Doyle Meeker NPK s & Micros Concentration Chemistry Constraints Can t put 6 gallons in a 5 gallon bucket! Certain elements need help to stay in solution

More information

6.02 Uniformity of Dosage Units

6.02 Uniformity of Dosage Units 6.02 Uniformity of Dosage Units Change 1. Content Uniformity, 3. Criteria and Table 6.02-2 as follows: 1. Content Uniformity Select not less than 30 units, and proceed as follows for the dosage form designated.

More information

3 To gain experience monitoring a titration with a ph electrode and determining the equivalence point.

3 To gain experience monitoring a titration with a ph electrode and determining the equivalence point. Titrations PURPOSE To determine the concentration of acetic acid in vinegar. GOALS 1 To perform an acid-base titration. 2 To gain experience titrating carefully to a visible endpoint. 3 To gain experience

More information

Journal of Chemical and Pharmaceutical Research

Journal of Chemical and Pharmaceutical Research Available on line www.jocpr.com Journal of Chemical and Pharmaceutical Research ISSN No: 0975-7384 CODEN(USA): JCPRC5 J. Chem. Pharm. Res., 2011, 3(2):397-402 Analysis of heavy metals in citrus juice from

More information

OPTIMIZING INHIBITOR BLENDS USING COMPUTER MODELING. Robert J. Ferguson French Creek Software Kimberton, PA ABSTRACT

OPTIMIZING INHIBITOR BLENDS USING COMPUTER MODELING. Robert J. Ferguson French Creek Software Kimberton, PA ABSTRACT OPTIMIZING INHIBITOR BLENDS USING COMPUTER MODELING Robert J. Ferguson French Creek Software Kimberton, PA 19442-0684 ABSTRACT Multifunctional cooling water treatment programs address scale and corrosion

More information

Pt-electrode with temperature sensor, Intellical MTC695

Pt-electrode with temperature sensor, Intellical MTC695 Sulfite DOC316.52.93090 Based on 4500-SO3 2 B in Standard Methods for the Examination of Water and Wastewater Amperometric Back Titration 0.00 20.00 mg/l as SO3 2-1. Introduction The scope of this application

More information

8PSME 'JSTU 4NBSU "MLBMJOF )ZESPHFO 8BUFS *POJ[FS

8PSME 'JSTU 4NBSU MLBMJOF )ZESPHFO 8BUFS *POJ[FS NEW OE (FOFSBUJPO 8PSME 'JSTU 4NBSU "MLBMJOF )ZESPHFO 8BUFS *POJ[FS The New 2nd generation KempSmart i7 water ionizer is equipped with NewTec Watercell technology to enable you to enjoy the best of both

More information

Non-aqueous Phase Titration for Total Acid Number of Crude Oil

Non-aqueous Phase Titration for Total Acid Number of Crude Oil RICE UNIVERSITY Manual 1 Non-aqueous Phase Titration for Total Acid Number of Crude Oil Yu Bian 08/10/2009 Name Comment Date 1 Contents 1. Non-aqueous Phase Titration... 3 1.1 Materials... 3 1.1.1 Solutions...

More information

Approximating Solubility/Availability & Communicating Information

Approximating Solubility/Availability & Communicating Information Approximating Solubility/Availability & Communicating Information Wayne P. Robarge Professor (Emeritus) Soil Physical Chemistry Department of Crop and Soil Sciences NC State University, Raleigh, NC Presented

More information

Soil Composition. Air

Soil Composition. Air Soil Composition Air Soil Included Air Approximately 40 to 60% of the volume of a soil is actually empty space between the solid particles (voids). These voids are filled with air and/or water. The air

More information

Welcome. Greg Patterson C.C.A. President A&L Canada Laboratories

Welcome. Greg Patterson C.C.A. President A&L Canada Laboratories Welcome Greg Patterson C.C.A. President A&L Canada Laboratories Discussion Soil test levels Dropping P,K Organic matter levels dropping Cost of Fertilizer Increasing due to Global Demand Environmental

More information

ph Technical Calibration Solutions solutions Technical Solutions (±0.01 ph) for Each Point of the ph Scale Easy to Use Single Dose Sachets

ph Technical Calibration Solutions solutions Technical Solutions (±0.01 ph) for Each Point of the ph Scale Easy to Use Single Dose Sachets HI5000 Series Technical Calibration Technical (±0.01 ) for Each Point of the Scale To obtain precise and valid measurements, the meter and electrode must be calibrated at a minimum of two different points,

More information

Application note. Determination of metals in soil by microwave plasma - atomic emission spectrometry (MP-AES) using DTPA extraction.

Application note. Determination of metals in soil by microwave plasma - atomic emission spectrometry (MP-AES) using DTPA extraction. Determination of metals in soil by microwave plasma - atomic emission spectrometry (MP-AES) using DTPA extraction Application note Agriculture Authors Marília S. Teodoro1, Daniela Schiavo2, Mônica Ferreira

More information

Removal of Cu 2+ and Zn 2+ in Aqueous Solutions by Sorption onto Fly Ash and Fly Ash Mixtures

Removal of Cu 2+ and Zn 2+ in Aqueous Solutions by Sorption onto Fly Ash and Fly Ash Mixtures Removal of Cu 2+ and Zn 2+ in Aqueous Solutions by Sorption onto Fly Ash and Fly Ash Mixtures V. Héquet 1, P. Ricou 1, I. Lecuyer 2 and P. Le Cloirec 1 1 Ecole des Mines de Nantes, Dept. Systèmes Energétiques

More information

Benedict s Quantitative Reagent Powder A Quantitative Test for Reducing Sugars

Benedict s Quantitative Reagent Powder A Quantitative Test for Reducing Sugars Benedict s Quantitative Reagent Powder A Quantitative Test for Reducing Sugars SIENTIFI Introduction Benedict s Quantitative Solution (prepared from Benedict s Quantitative Reagent Powder) is a test reagent

More information

FERTILIZING GREENHOUSE CROPS

FERTILIZING GREENHOUSE CROPS FERTILIZING GREENHOUSE CROPS CLF 150 ppm SRF 6m-5g SRF 9m-5g David Trinklein Division of Plant Sciences Fertilizing Greenhouse Crops K Ca Fe Mg N gallery.yopriceville.com A Difficult Process?? Fertilizing

More information

Use of Sodium Borohydride to Control Heavy

Use of Sodium Borohydride to Control Heavy Use of Sodium Borohydride to Control Heavy Metal Discharge in the Photographic Industry M. M. Cook and J. A. Lander Reprinted from JOURNAL OF APPLIED PHOTOGRAPHIC ENGINEERING Volume 5, Number 3, Summer

More information

NEW YORK STATE DEPARTMENT OF HEALTH CLINICAL LABORATORY EVALUATION PROGRAM

NEW YORK STATE DEPARTMENT OF HEALTH CLINICAL LABORATORY EVALUATION PROGRAM Any Forensic Toxicology standards not addressed here remain in effect. (changes are underlined) Forensic Toxicology Sustaining Standard of Practice 27 (FT S27): Urine SVT Calibration and QC Requirements

More information

Simultaneous Determination of Copper, Zinc and Selenium in Chicken Liver by Differential Pulse Polarography

Simultaneous Determination of Copper, Zinc and Selenium in Chicken Liver by Differential Pulse Polarography Turk J Chem 27 (2003), 347 355. c TÜBİTAK Simultaneous Determination of Copper, Zinc and Selenium in Chicken Liver by Differential Pulse Polarography Güler EKMEKCİ Gazi University, Gazi Education Faculty,

More information

Quizzes Announcements They are all graded and may be up on Sapling Your final quiz will be on the remainder of information in the class and tentatively will be given via Sapling over Wed., 6/4 Sun., 6/8

More information

Class 10 Science - Sample Paper Set I

Class 10 Science - Sample Paper Set I Time allowed: 3 hours; Maximum marks: 90 General Instructions: a) All Questions are compulsory b) The Question Paper consists of 42 Questions divided in to four sections A, B, C and D c) Section- A comprises

More information

Zinc isotopes in the Seine River water, France: a probe of. anthropogenic contamination

Zinc isotopes in the Seine River water, France: a probe of. anthropogenic contamination Zinc isotopes in the Seine River water, France: a probe of anthropogenic contamination Jiubin Chen*, Jérôme Gaillardet and Pascale Louvat Equipe Géochimie et Cosmochimie, Institut de Physique du Globe

More information

Worksheet. Worksheet. Worksheet. Worksheet. Student Performance Guide. Student Performance Guide

Worksheet. Worksheet. Worksheet. Worksheet. Student Performance Guide. Student Performance Guide LESSON 6-3 Laboratory Reagent Preparation and Calculations Worksheet LESSON 6-4 Chemistry Instrumentation in the Physician Office Laboratory Worksheet LESSON 6-6 Measuring Blood Glucose Worksheet LESSON

More information

Preliminary Study of Zinc Removal from Cyanide-free Alkaline Electroplating Effluent by Precipitation using Oxalis Plants

Preliminary Study of Zinc Removal from Cyanide-free Alkaline Electroplating Effluent by Precipitation using Oxalis Plants ORIENTAL JOURNAL OF CHEMISTRY An International Open Free Access, Peer Reviewed Research Journal www.orientjchem.org ISSN: 0970-020 X CODEN: OJCHEG 2014, Vol. 30, No. (2): Pg. 515-519 Preliminary Study

More information

Determination of metals in industrial wastewaters by microwave plasmaatomic emission spectrometry

Determination of metals in industrial wastewaters by microwave plasmaatomic emission spectrometry Determination of metals in industrial wastewaters by microwave plasmaatomic emission spectrometry Application note Environmental Author Terrance Hettipathirana Agilent Technologies Melbourne, Australia

More information

Immobilizing Arsenic in Contaminated Soil Using Humic Mineral Concentrates

Immobilizing Arsenic in Contaminated Soil Using Humic Mineral Concentrates Immobilizing in Contaminated Soil Using Humic Mineral Concentrates Alexander I.Shulgin 1 and D. Joseph Hagerty 2, F. ASCE, PE 1. Research Professor, Chemical Engineering Dept., U. Louisville, Louisville,

More information

Interactive Study Guide: Calibration Standard Solutions. Case Study: Preparing Standard Solutions for the Calibration of an AA Spectrophotometer

Interactive Study Guide: Calibration Standard Solutions. Case Study: Preparing Standard Solutions for the Calibration of an AA Spectrophotometer Interactive Study Guide: Calibration Standard Solutions Produced by Graham Currell and Kevin Sudlow, University of the West of England, Bristol in association with: Royal Society of Chemistry, 'Discover

More information

The Small-Size Electrode Type Blood Glucose Meter Antsense III and Point of Care Testing

The Small-Size Electrode Type Blood Glucose Meter Antsense III and Point of Care Testing Feature Article The Small-Size Electrode Type Blood Glucose Meter Antsense III and Point of Care Testing Yoichi Ohmori Antsense III is a light, compact and portable electrode type blood glucose meter which

More information

SDIVISION. Attorney Docket No Date: 14 May 2008

SDIVISION. Attorney Docket No Date: 14 May 2008 SDIVISION DEPARfMENT OF THE NAVY NAVAL UNDERSEA WARFARE CENTER NEWPORT OFFICE OF COUNSEL PHONE: (401) 832-3653 FAX: (401) 832-4432 NEWPORT DSN: 432-3653 Attorney Docket No. 95764 Date: 14 May 2008 The

More information

Method (6 to 1000 µg/l Chlorine as Cl 2 ) Digital Titrator

Method (6 to 1000 µg/l Chlorine as Cl 2 ) Digital Titrator , ABT, DT, 10025 Amperometric Back Titration 1 Scope and Application: For drinking water and wastewater; USEPA accepted for reporting 1 Procedure is equivalent to Standard Method (18th ed.) 4500-Cl C for

More information

Year 8 Assessment. Autumn Term Remember!

Year 8 Assessment. Autumn Term Remember! Remember! Each section of questions gets harder as you go through (higher level questions at the end of each section). Try all questions. Write down an idea even if you re not sure you might get a mark!

More information

HI Titratable Acidity Mini Titrator for Fruit Juice Analysis

HI Titratable Acidity Mini Titrator for Fruit Juice Analysis HI 84532 Titratable Acidity Mini Titrator for Fruit Juice Analysis Piston Driven Pump with Dynamic Dosing The HI 84532 incorporates dynamic dosing to provide precison titrant delivery. Dynamic dosing adjusts

More information

HI Total Acidity Mini Titrator for Water Analysis

HI Total Acidity Mini Titrator for Water Analysis HI 84530 Total Acidity Mini Titrator for Water Analysis Piston Driven Pump with Dynamic Dosing The HI 84530 incorporates dynamic dosing to provide precison titrant delivery. Dynamic dosing adjusts the

More information

Supplying Nutrients to Crops

Supplying Nutrients to Crops Supplying Nutrients to Crops What is Plant Nutrition? Plants need nutrients for healthy growth and development. Plant nutrition involves the absorption of nutrients for plant growth and is dependent on

More information

Experiment: Iodometric Titration Analysis of Ascorbic Acid Chem251 modified 09/2018

Experiment: Iodometric Titration Analysis of Ascorbic Acid Chem251 modified 09/2018 Experiment: Iodometric Titration Analysis of Ascorbic Acid Chem251 modified 09/2018 Experiment. Iodometric Titration of Ascorbic Acid. Objective: The goal of this lab is to determine the concentration

More information

Copper CMP treatment using the Copper Select process

Copper CMP treatment using the Copper Select process Copper CMP treatment using the EHS Michael W. Wismer & Richard E. Woodling, USFilter, Milpitas, CA, USA ABSTRACT The is being used at many semiconductor Fabs around the world to successfully treat copper-bearing

More information

SOUTH AFRICAN NATIONAL STANDARD

SOUTH AFRICAN NATIONAL STANDARD ISBN 978-0-626-31165-0 SOUTH AFRICAN NATIONAL STANDARD Water Sulfide content Published by SABS Standards Division 1 Dr Lategan Road Groenkloof Private Bag X191 Pretoria 0001 Tel: +27 12 428 7911 Fax: +27

More information

Chelated Nutrients. something stupid

Chelated Nutrients. something stupid Chelated Nutrients something stupid Chelated Roots The word chelated comes from the Greek word chele meaning claw Slovenian translation: kelatirani Different chelates are named after the metals they contain.

More information

HI Total Alkalinity Mini Titrator for Water Analysis

HI Total Alkalinity Mini Titrator for Water Analysis HI 84531 Total Alkalinity Mini Titrator for Water Analysis Piston Driven Pump with Dynamic Dosing The HI 84531 incorporates dynamic dosing to provide precison titrant delivery. Dynamic dosing adjusts the

More information

HI Titratable Acidity Mini Titrator for Fruit Juice Analysis

HI Titratable Acidity Mini Titrator for Fruit Juice Analysis HI 84532 Titratable Acidity Mini Titrator for Fruit Juice Analysis Piston Driven Pump with Dynamic Dosing The HI 84532 incorporates dynamic dosing to provide precison titrant delivery. Dynamic dosing adjusts

More information

CONTENTS. Introduction. Nutrient Solution Management. (i) Electrical Conductivity (E.C.) How to measure E.C. of the nutrient solution

CONTENTS. Introduction. Nutrient Solution Management. (i) Electrical Conductivity (E.C.) How to measure E.C. of the nutrient solution Septembre 2007. CONTENTS Introduction The Hydroponic Nutrient Solution Nutrient Solution Management (i) Electrical Conductivity (E.C.) How to measure E.C. of the nutrient solution Recommended values of

More information

Actual Excipient Test Data on Metal Impurities Submitted to IPEC-Americas from Industry

Actual Excipient Test Data on Metal Impurities Submitted to IPEC-Americas from Industry Actual Excipient Test Data on Metal Impurities Submitted to IPEC-Americas from Industry Priscilla Zawislak Chair Compendial Review Committee IPEC Americas Global Regulatory Affairs Manager Ashland Inc.

More information

Use of A Multi-ionic Extractant to Determine Available P, K, Na, Ca, and Mg in Acid Soils of Sri Lanka

Use of A Multi-ionic Extractant to Determine Available P, K, Na, Ca, and Mg in Acid Soils of Sri Lanka , 152-158 Use of A Multi-ionic Extractant to Determine Available P, K, Na, Ca, and Mg in Acid Soils of Sri Lanka W.S. Madurapperuma and D. Kumaragamage 1 Postgraduate Institute of Agriculture University

More information

E55A GELATIN, GELLING GRADE Gelatina

E55A GELATIN, GELLING GRADE Gelatina 00-0PDG.pdf 0 0 0 0 EA GELATIN, GELLING GRADE Gelatina DEFINITION Purified protein obtained from collagen of animals (including fish and poultry) by partial alkaline and/or acid hydrolysis, by enzymatic

More information

Elemental Scientific. seafast S2. Elution Profiles. Elemental Scientific

Elemental Scientific. seafast S2. Elution Profiles. Elemental Scientific Elemental Scientific seafast S2 seafast S2 TM Authors: Nathan Saetveit (nathan@icpms.com) Brief The seafast S2 is an automated sample introduction system for multi-mode determination of ultra-trace metals

More information

BabyBio IMAC columns DATA SHEET DS

BabyBio IMAC columns DATA SHEET DS BabyBio IMAC columns DATA SHEET DS 45 655 010 BabyBio columns for Immobilized Metal Ion Affinity Chromatography (IMAC) are ready-to-use for quick and easy purification of polyhistidine-tagged (His-tagged)

More information

HI Total Alkalinity Mini Titrator for Water Analysis

HI Total Alkalinity Mini Titrator for Water Analysis HI 84531 Total Alkalinity Mini Titrator for Water Analysis Piston Driven Pump with Dynamic Dosing The HI 84531 incorporates dynamic dosing to provide precison titrant delivery. Dynamic dosing adjusts the

More information

HI Titratable Acidity Mini Titrator for Fruit Juice Analysis

HI Titratable Acidity Mini Titrator for Fruit Juice Analysis HI 84532 Titratable Acidity Mini Titrator for Fruit Juice Analysis Piston Driven Pump with Dynamic Dosing The HI 84532 incorporates dynamic dosing to provide precison titrant delivery. Dynamic dosing adjusts

More information

3.0 Supplying Nutrients to Crops

3.0 Supplying Nutrients to Crops 3.0 Supplying Nutrients to Crops Plants need for healthy growth and development. Plant nutrition involves the absorption of nutrients for plant growth and is dependent on, often referred to as nutrients.

More information

Thiols (mercaptans) in Fuels (ASTM D )

Thiols (mercaptans) in Fuels (ASTM D ) Thiols (mercaptans) in Fuels (ASTM D3227-13) DOC316.52.93109 Potentiometric titration Applications: gasolines, kerosenes, aviation turbine fuels, distillate fuels 1. Introduction This test method covers

More information

GaNS Production Explained

GaNS Production Explained GaNS Production Explained GaNS We need to create GaNS s (Gases in a Nano state) for many purposes. They are energetic balls of plasma which have both Magnetical & Gravitational fields. There are 5 common

More information

HAGEDORN AND JENSEN TO THE DETER- REDUCING SUGARS. MINATION OF LARGER QUANTITIES OF XIV. AN APPLICATION OF THE METHOD OF

HAGEDORN AND JENSEN TO THE DETER- REDUCING SUGARS. MINATION OF LARGER QUANTITIES OF XIV. AN APPLICATION OF THE METHOD OF XIV. AN APPLICATION OF THE METHOD OF HAGEDORN AND JENSEN TO THE DETER- MINATION OF LARGER QUANTITIES OF REDUCING SUGARS. By CHARLES SAMUEL HANES (Junior Scholar of the Exhibition of 1851). From the Botany

More information

Determination of Langelier Index in Water

Determination of Langelier Index in Water Determination of Langelier Index in Water Based on Hach method 8073 ISO 10523: 2008 ISO 6059: 1984 ISO 9963: 1994 DOC316.52.93108 Total Alkalinity and Ca Hardness: 10-1000 mg/l CaCO3 1. Introduction Langelier

More information

Plant Nutrients in Mineral Soils

Plant Nutrients in Mineral Soils The Supply and Availability of Plant Nutrients in Mineral Soils Plant Nutrients in Mineral Soils Factors Controlling the Growth of Higher Plants 1. Light 2. Mechanical Support. Heat. Air 5. Water 6. Nutrients

More information

An Investigative Study of Reactions Involving Glucosinolates and Isothiocyanates

An Investigative Study of Reactions Involving Glucosinolates and Isothiocyanates An Investigative Study of Reactions Involving Glucosinolates and Isothiocyanates Alzea Chrisel H. Alea 1, Diane Elaine T. Co 2 and Marissa G Noel 3* 1,2,3Chemistry Department, De La Salle University, 2401

More information

UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education

UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education *6062662112* CO-ORDINATED SCIENCES 0654/52 Paper 5 Practical Test October/November 2011 2 hours

More information

Chemical Pharmaceutical Quality Control. Prof.Dr.Joumaa Al- Zehouri Damascus university Faculty of Pharmacy

Chemical Pharmaceutical Quality Control. Prof.Dr.Joumaa Al- Zehouri Damascus university Faculty of Pharmacy Chemical Pharmaceutical Quality Control Prof.Dr.Joumaa Al- Zehouri Damascus university Faculty of Pharmacy COMPLEXOMETRIC REACTIONS AND TITRATIONS Prof.J.Al-Zehouri 1 ml of 0.1Msodium edetate is equivalent

More information

Understanding your results Acidity... 3 Aluminium... 3 Base saturation... 3 Boron... 4 Bulk density... 4 Calcium... 4 Cations...

Understanding your results Acidity... 3 Aluminium... 3 Base saturation... 3 Boron... 4 Bulk density... 4 Calcium... 4 Cations... Understanding your results Acidity... 3 Aluminium.... 3 Base saturation... 3 Boron... 4 Bulk density... 4 Calcium... 4 Cations... 4 CEC - Cation Exchange Capacity... 4 Copper... 5 Conductivity... 6 Deficiencies...

More information

Introduction to sodium technology Neutronic characteristics of sodium and complexities

Introduction to sodium technology Neutronic characteristics of sodium and complexities Introduction to sodium technology Neutronic characteristics of sodium and complexities K.S. Rajan Professor, School of Chemical & Biotechnology SASTRA University Joint Initiative of IITs and IISc Funded

More information

Hardness by EDTA Titration

Hardness by EDTA Titration SOP AMBL-104-A Page 1 of 5 Standard Operating Procedure AMBL-104-A Prepared: 7/2/2017 Revised: Prepared by: Terry E. Baxter Reviewed by: Hardness by EDTA Titration METHOD SUMMARY This SOP describes the

More information

Application Note #67 Total Acid Number (TAN)

Application Note #67 Total Acid Number (TAN) Application Note #67 Total Acid Number (TAN) Updated December 2016 Introduction: Acid Number or Total Acid Number (TAN) is used to test the quantity of acidic components in an oil sample. This test determines

More information

Supporting Information to accompany: Resolving the Chemistry of Zn 3 P 2 Nanocrystal Growth

Supporting Information to accompany: Resolving the Chemistry of Zn 3 P 2 Nanocrystal Growth Supporting Information to accompany: Resolving the Chemistry of Zn 3 P 2 Nanocrystal Growth Benjamin A. Glassy and Brandi M. Cossairt* Department of Chemistry, University of Washington, Box 351700, Bagley

More information

GEOCHEMICAL MODELING TO IMPROVE METALS REMEDIATION

GEOCHEMICAL MODELING TO IMPROVE METALS REMEDIATION GEORGIA ENVIRONMENTAL CONFERENCE JEKYLL ISLAND GEOCHEMICAL MODELING TO IMPROVE METALS REMEDIATION 1 GEOCHEMICAL MODELING BASICS Data Required Field Parameters (ph, ORP) Water quality parameters Major cations/anions

More information

EFFECT OF COMPRESSED CO 2 ON THE PROPERTIES OF AOT IN ISOOCTANE REVERSE MICELLAR SOLUTION AND ITS APPLICATION TO RECOVER NANOPARTICLES

EFFECT OF COMPRESSED CO 2 ON THE PROPERTIES OF AOT IN ISOOCTANE REVERSE MICELLAR SOLUTION AND ITS APPLICATION TO RECOVER NANOPARTICLES EFFECT OF COMPRESSED CO 2 ON THE PROPERTIES OF AOT IN ISOOCTANE REVERSE MICELLAR SOLUTION AND ITS APPLICATION TO RECOVER NANOPARTICLES Dongxia Liu, Jianling Zhang, Tiancheng Mu, Jing Chen, Weize Wu, Jun

More information

Calcium Oxide and Calcium Hydroxide Treatment of Corn Silage

Calcium Oxide and Calcium Hydroxide Treatment of Corn Silage Animal Industry Report AS 659 ASL R2774 2013 Calcium Oxide and Calcium Hydroxide Treatment of Corn Silage Garland R. Dahlke Iowa State University, garland@iastate.edu Russell M. Euken Iowa State University,

More information

Carbohydrates. Objectives. Background. Experiment 6

Carbohydrates. Objectives. Background. Experiment 6 1 of 6 3/15/2011 7:27 PM Experiment 6 Carbohydrates Objectives During this experiment you will look at some of the physical and chemical properties of carbohydrates. Many of the carbohydrates, especially

More information

Autotitrator. Technical Information and Specifications. mpt-2. detailed specification sheets from

Autotitrator. Technical Information and Specifications. mpt-2. detailed specification sheets from Technical Information and Specifications detailed specification sheets from www.malvern.co.uk/autotitrator MPT-2 Autotitrator Description The MPT-2 autotitrator is an optional accessory compatible with

More information

Regeneration Process Improvement of Demineralization Unit in LNG Plant Bontang

Regeneration Process Improvement of Demineralization Unit in LNG Plant Bontang Regeneration Process Improvement of Demineralization Unit in LNG Plant Bontang Okky W. Lukman Abstract PT Badak NGL is a world class company located in Bontang. The company is capable to produce liquefied

More information

Performance Characteristics of the Agilent High Matrix Sample Introduction (HMI) Accessory for the 7500 Series ICP-MS. Product Overview.

Performance Characteristics of the Agilent High Matrix Sample Introduction (HMI) Accessory for the 7500 Series ICP-MS. Product Overview. Performance Characteristics of the Agilent High Matrix Sample Introduction (HMI) Accessory for the 7500 Series ICP-MS Product Overview Introduction The determination of multiple trace elements in high-matrix

More information

Soil Fertility and Nutrient Management. Hailin Zhang. Department of Plant and Soil Sciences

Soil Fertility and Nutrient Management. Hailin Zhang. Department of Plant and Soil Sciences Soil Fertility and Nutrient Management Hailin Zhang Department of Plant and Soil Sciences C H O P N K 16 ESSENTIAL ELEMENTS Ca S Mg B Cl Cu Fe Mn Mo B NON-MINERAL NUTRIENTS Carbon (C) Hydrogen (H) Oxygen

More information

Soil Conditions Favoring Micronutrient Deficiencies and Responses in 2001

Soil Conditions Favoring Micronutrient Deficiencies and Responses in 2001 Soil Conditions Favoring Micronutrient Deficiencies and Responses in 2001 K.A. Kelling and P.E. Speth Department of Soil Science University of Wisconsin-Madison Why micronutrients now: Higher yield, therefore

More information

A Penny for Your Thoughts: Scientific Measurements and Introduction to Excel

A Penny for Your Thoughts: Scientific Measurements and Introduction to Excel A Penny for Your Thoughts: Scientific Measurements and Introduction to Excel Pre-lab Assignment: Introduction Reading: 1. Chapter sections 1.4 through 1.6 in your course text. 2. This lab handout. Questions:

More information

TOXIC AND ESSENTIAL ELEMENTS

TOXIC AND ESSENTIAL ELEMENTS TOXIC AND ESSENTIAL ELEMENTS Assessment of Key Minerals and Harmful Metals Whole Blood, Red Blood Cell and Serum Elements Urine Toxic and Essential Elements Creatinine Clearance Hair Elements Fecal Metals

More information

BIOL 347L Laboratory Three

BIOL 347L Laboratory Three Introduction BIOL 347L Laboratory Three Osmosis in potato and carrot samples Osmosis is the movement of water molecules through a selectively permeable membrane into a region of higher solute concentration,

More information

Research Note REMOVAL OF HEAVY METALS FROM AQEOUS SOLUTION BY CARROT RESIDUES *

Research Note REMOVAL OF HEAVY METALS FROM AQEOUS SOLUTION BY CARROT RESIDUES * Iranian Journal of Science & Technology, Transaction A, Vol. 28, No. A1 Printed in Islamic Republic of Iran, 2004 Shiraz University Research Note REMOVAL OF HEAVY METALS FROM AQEOUS SOLUTION BY CARROT

More information

BIOL 305L Spring 2019 Laboratory Six

BIOL 305L Spring 2019 Laboratory Six Please print Full name clearly: BIOL 305L Spring 2019 Laboratory Six Osmosis in potato and carrot samples Introduction Osmosis is the movement of water molecules through a selectively permeable membrane

More information

Nutrition of Aquatic Species - Student Notes

Nutrition of Aquatic Species - Student Notes Directions: Fill in the blanks. 1. Nutrition Is the process by which organisms receive and utilize food products Involves many different chemical reactions and changes which convert food into usable energy

More information

Experiment 1: Scientific Measurements and Introduction to Excel

Experiment 1: Scientific Measurements and Introduction to Excel Experiment 1: Scientific Measurements and Introduction to Excel Reading: Chapter 1 of your textbook and this lab handout. Learning Goals for Experiment 1: To use a scientific notebook as a primary record

More information

Zn 2+ Triggered Amide Tautomerization Produces a Highly Zn 2+ Selective, Cell Permeable and Ratiometric Fluorescent Sensor

Zn 2+ Triggered Amide Tautomerization Produces a Highly Zn 2+ Selective, Cell Permeable and Ratiometric Fluorescent Sensor Supporting Information For Zn 2+ Triggered Amide Tautomerization Produces a Highly Zn 2+ Selective, Cell Permeable and Ratiometric Fluorescent Sensor Zhaochao Xu,*,, Kyung-Hwa Baek, Ha Na Kim, Jingnan

More information

US EPA SW-846 Method 6010D using the Thermo Scientific icap 7400 ICP-OES Duo

US EPA SW-846 Method 6010D using the Thermo Scientific icap 7400 ICP-OES Duo APPLICATION NOTE 43152 US EPA SW-846 Method 6010D using the Thermo Scientific icap 7400 ICP-OES Duo Authors James Hannan, Application Specialist, Thermo Fisher Scientific, Hemel Hempstead, UK Keywords

More information

Determination of Copper in Green Olives using ICP-OES

Determination of Copper in Green Olives using ICP-OES Application Note Food and Agriculture Determination of Copper in Green Olives using ICP-OES Intelligent Rinse function reduced analysis time by 60%, saving 191.4 L of argon Authors Ryley Burgess, Agilent

More information

Elemental analysis in clinical practice

Elemental analysis in clinical practice Elemental analysis in clinical practice Nicholas J Miller FRCPath, Laboratory Director, Biolab Medical Unit, ThermoFisher summer symposium 7 th June 2011, QEII Conference Centre Nutritional Elements Macro

More information

Change to read: BRIEFING

Change to read: BRIEFING BRIEFING Dibasic Calcium Phosphate Dihydrate, USP 29 page 359. The Japanese Pharmacopoeia is the coordinating pharmacopeia for the international harmonization of the compendial standards for the Dibasic

More information