| |
 |
 |
| Certifications |
|
SPEX CertiPrep is proud to be accredited by A2LA for both Organic and Inorganic Certified Reference Materials. We are a certified ISO 9001:2000 facility and accredited by A2LA as complying with the requirements of ISO/IEC 17025:2005 and ISO/IEC Guide 34-2000. This new milestone establishes our continuing dedication to our customer for providing the highest quality standards on the market.
Visit A2LA Websites for a complete scope of work.
ISO/IEC 17025 - 2005:General Requirements of the Competence of Testing and Calibration Laboratories.
Certificate and Details
ISO/IEC Guide 34 - 2000: General Requirements for the Competence of Reference Material Producers.
Certificate and Details
ISO Certificate |
| Actinium | Ac |
| Aluminum | Al |
| Americium | Am |
| Antimony | Sb |
| Argon | Ar |
| Arsenic | As |
| Astatine | At |
| Barium | Ba |
| Berkelium | Bk |
| Beryllium | Be |
| Bismuth | Bi |
| Boron | B |
| Bromine | Br |
| Cadmium | Cd |
| Calcium | Ca |
| Californium | Cf |
| Carbon | C |
| Cerium | Ce |
| Cesium | Cs |
| Chlorine | Cl |
| Chromium | Cr |
| Cobalt | Co |
| Copper | Cu |
| Curium | Cm |
| Dysprosium | Dy |
| Einsteinium | Es |
| Erbium | Er |
| Europium | Eu |
| Fermium | Fm |
| Fluorine | F |
| Francium | Fr |
| Gadolinium | Gd |
| Gallium | Ga |
| Germanium | Ge |
| Gold | Au |
| Hafnium | Hf |
| Helium | He |
| Holmium | Ho |
| Hydrogen | H |
| Indium | In |
| Iodine | I |
| Iridium | Ir |
| Iron | Fe |
| Krypton | Kr |
| Lanthanum | La |
| Lawrencium | Lr |
| Lead | Pb |
| Lithium | Li |
| Lutetium | Lu |
| Magnesium | Mg |
| Manganese | Mn |
| Mendelevium | Md |
| Mercury | Hg |
| Molybdenum | Mo |
| Neodymium | Nd |
| Neon | Ne |
| Neptunium | Np |
| Nickel | Ni |
| Niobium | Nb |
| Nitrogen | N |
| Nobelium | No |
| Osmium | Os |
| Oxygen | O |
| Palladium | Pd |
| Phosphorus | P |
| Platinum | Pt |
| Plutonium | Pu |
| Polonium | Po |
| Potassium | K |
| Praseodymium | Pr |
| Promethium | Pm |
| Protactinium | Pa |
| Radium | Ra |
| Radon | Rn |
| Rhenium | Re |
| Rhodium | Rh |
| Rubidium | Rb |
| Ruthenium | Ru |
| Samarium | Sm |
| Scandium | Sc |
| Selenium | Se |
| Silicon | Si |
| Silver | Ag |
| Sodium | Na |
| Strontium | Sr |
| Sulfur | S |
| Tantalum | Ta |
| Technetium | Tc |
| Tellurium | Te |
| Terbium | Tb |
| Thallium | Tl |
| Thorium | Th |
| Thulium | Tm |
| Tin | Sn |
| Titanium | Ti |
| Tungsten | W |
| Uranium | U |
| Vanadium | V |
| Xenon | Xe |
| Ytterbium | Yb |
| Yttrium | Y |
| Zinc | Zn |
| Zirconium | Zr |
Temperature
ºF | ºC | 0.556ºC- 17.8 |
| ºC | ºF | 1.8ºC + 32 |
| ºC | ºK | 1.0ºC + 273 |
Length
mils | microns | 25.4 |
| mils | millimeters | 0.0254 |
| inches | mils | 1000 |
| centimeters | inches | 2.54 |
| feet | meters | 0.3048 |
| feet | miles | 5280 |
| feet | yards | 3 |
Mass
grams | ounces | 28.4 |
| kilograms | pounds | 0.45 |
| ounces (troy) | grams | 0.03215 |
| pounds | tons | 2000 |
Area
square centimeters | square inches | 6.5 |
| square meters | square feet | 0.09 |
| square meters | square yards | 0.8 |
| square kilometers | square miles | 2.6 |
| hectares | arces | 0.4 |
Volume
teaspoons | mililiters | 5 |
| tablespoons | mililiters | 15 |
| fluid ounces | mililiters | 30 |
| quarts | liters | 0.95 |
| gallons | liters | 3.8 |
| cubic meters | cubic feet | 0.03 |
| cubic meters | cubic yards | 0.76 |
Constants
| Universal Gas Constant | R = 0.0821(Atm)(l)/(ºK)(mole) |
| Acceleration Due to Gravity | g = 32.17 ft/sec², 9.8 m/sec² |
| Avogadro's Constant | N = 6.022 x 1023 molecules/mole |
| Speed of Light | c = 186,000 miles/sec, 3 X 1010 cm/sec |
| Heat of Fusion
(water 1 atm, 0ºC) | Hf = 79.7 cal/g |
| Heat of Vaporization
(water 1 atm, 100ºC) | Hv = 540 cal/g |
| Volume of Perfect Gas | 22.4l at 0ºC, 760 torr |
| Faraday's Constant | F = 96.494 coulombs/equiv. weight |
| Planck's Constant | h = 6.626 X 10-27 erg/sec |
| Bragg's Law | nl = 2d sinq |
| Absolute Zero | -273.15 ºC |
| Temperature of Liquid Nitrogen | -195.8 ºC |
 |
3/3/2008
| | |
Title: Analysis of RoHS Directive Elements in Plastics
Description: Abstact coming soon!
Location: Ernest N. Morial Convention Center
New Orleans
LA
Web Site
Presentor: Ralph Obenauf
Comments: Ralph Obenauf, the president of SPEX CertiPrep, will be presenting this talk on "Analysis of RoHS Directive Elements in Plastics" during the workshop on "Facing Analytical Challenges with Reference Materials". The workshop is scheduled during Pittcon on 03/03/08, additional information to follow.
Presentation Slides
|
|
1/7/2008 - 1/12/2008
| | |
Title: Use of Isotope Dilution Technique in Analyzing Plastic Materials
Description: The European Directive, RoHS restricts the use of hazardous substances such as Lead, Cadmium, Chromium(VI), Mercury and brominated polybihphenyl ethers in electronic and other equipment. Most of the methods currently used are not appropriate for all products tested and the results differ from method to method. It is vital to develop standard methods that produce reliable results that can be implemented by all laboratories. Isotope dilution is one of the most accurate analytical methods for concentration determination. Since all elements of interest in the RoHS directive have two or more naturally occurring isotopes, the isotope dilution technique renders an interesting solution to the determination of these elements. Results of the analysis of Mercury, Cadmium and Chromium VI in plastics by isotopic dilution will be presented.
Location: Pechanga Resort and Casino
45000 Pechanga Parkway Formerly Pala Road
Temecula
CA
Web Site
Location Phone: (951) 693-1819
Presentor: Ralph Obenauf, Ph.D
|
|
4/1/2007 - 5/1/2007
| | |
Title: Trace Elements in Fish And Fish Oil Supplements
Description: Safe levels of metals in Fish and Fish Oil Supplements.
Presentor: Vanaja Sivakumar
Presentation Slides
|
|
2/18/2007 - 2/23/2007
| | |
Title: Statistical Determination of Measurement Uncertainty
Description: Discussions of the state-of-art and new developments in all aspects of plasma spectrochemistry
Guidance to determining detection limits
Taorima
Italty
Presentor: The Winter Conference on Plasma Spectrochemistry
|
|
10/25/2006
| | |
Title: UKRM WG - United Kingdoms Reference Materials Working Group
Description: SPEX CertiPrep Ltd's Certified Reference Materials
London
United Kingdom
Presentor: Ralph Obenauf
|
|
9/26/2006 - 9/28/2006
| | |
Title: FACSS
Description: "Statistical Determination of Measurement Uncertainty"
Orlando
FL
United States Of America
Presentor: Ralph Obenauf
|
|
8/28/2006
| | |
Title: Uncertainties in Dilution Practices and Calibrations
Description: Uncertainties in Dilution Practices and Calibrations
Presentor: Bill Hahn
Presentation Slides
|
|
8/17/2006
| | |
Title: NELAC/INELA Performance Testing Committee
Description: Review and Reorganization of Standards
Kansas City, KS
KS
Presentor: Ralph Obenauf
|
|
8/1/2006
| | |
Title: Uncertainties
Description: Uncertainties Talk
Presentor: Bill Hahn
|
|
5/1/2006 - 5/4/2006
| | |
Title: BERM 10 - Biological & Environmental
Description: Reporting Values and Uncertainties for Certified Reference Materials Used in ICP and ICPMS Analysis (Chromium VI)
Charleston
SC
Presentor: Ralph Obenauf
|
|
4/24/2006 - 4/26/2006
| | |
Title: Health Aspects of Calcium and Magnesium in Drinking Water
Description: Determination of Trace Elements in Drinking Water by ICP/MS
Baltimore
MD
Web Site
Presentor: Ralph Obenauf
|
|
1/12/2006 - 1/16/2006
| | |
Title: ICP Winter Conference
Description: Reporting Values and Uncertainties for Certified Reference Materials Used in ICP-MS Analysis.
Tucson
AZ
Presentor: Nimi Kocherlakota and Ralph Obenauf
|
|
1/12/2006 - 1/16/2006
| | |
Title: ICP Winter Conference
Description: Products for Reducing Contamination in the Determination of PPB and PPT Metal Concentrations
Tucson
AZ
Presentor: Nimi Kocherlakota and Ralph Obenauf
|
|
10/19/2005
| | |
Title: PPB/PPT Analysis
Description: More details to come.
Location: US EPA
TX
Presentor: Nimi Kocherlakota
|
|
10/19/2005 - 10/20/2005
| | |
Title: USEPA
Description: Metals Analysis at PPB and PPT Levels
Location: Texas
TX
Presentor: Nimi Kocherlakota
|
|
9/28/2005 - 9/29/2005
| | |
Title: JAM Annual Meeting
Description: Clean Laboratory Techniques and Tips
Location: Virginia
VA
Presentor: Ralph Obenauf
|
|
9/28/2005
| | |
Title: Clean Laboratory Technical Tips
Description:
Location: JAM Annual Meeting
VA
Presentor: Ralph Obenauf, Ph.D.
|
|
8/15/2005 - 8/18/2005
| | |
Title: INELA Annual Meeting
Description: Performance Testing Committee
Raleigh
NC
Presentor: Ralph Obenauf
|
|
8/1/2005 - 8/5/2005
| | |
Title: 54th Annual Denver X-ray conference
Description: Comparison of fusion versus pressed powders in XRF analysis
Colorado Springs
CO
Presentor: John Martin
|
|
8/1/2005
| | |
Title: Trace Metals in Chocolate.
Description: This presentation is informative for both the lover of chocolate as well as the curious scientist. After months of testing chocolates from around the world, we found out that chocolate may have a lot more in it than the rich, smooth taste we have all grown to love.
Location: Good Laboratory Practices Seminar
Charlottesville
VA
Presentor: Nimi Kocherlakota
|
|
8/1/2005
| | |
Title: Quantitative Calculation of the Statistical Uncertainty Associated with a Gold Reference Material
Location: Measurement Uncertainty Symposium
Washington
DC
Presentor: Ralph Obenauf, Ph.D.
|
|
8/1/2005 - 8/2/2005
| | |
Title: Measurement Unsertainty Symposium Wash DC, 2005 Sponsored by NIST
Description: Statistical Determination of Uncertainty in Gravimetric Determinations
Washington
DC
Presentor: Ralph Obenauf
|
|
8/1/2005 - 8/2/2005
| | |
Title: Good Laboratory Practices seminar, Sponsered by VWWAA
Description: Trace Metals in Chocolate
Charletsville
VA
Presentor: Nimi Kocherlakota
|
|
7/13/2005 - 7/14/2005
| | |
Title: Statistical Uncertainty
Description: For more information please contact Susan Basara at sbasara@anachemia.com
Location: Webinar hosted by Anachemia
Presentor: Ralph Obenauf and Nimi Kocherlakota
|
|
5/24/2005
| | |
Title: Common Problems Encountered When Running Performance Testing Samples for Laboratory Accreditation
Description: Performance Evaluation (PE) program, operated by USEPA, was privatized under NELAP as the Performance Testing (PT) Program.
*PT samples are available from PT providers, accredited in specific areas by NVLAP.
*One or two PT’s per year depending on programs.
*We will discuss common pitfalls and problems, which have caused failure for inorganic analytes, and ways to avoid them.
Location: None scheduled at this time
Presentor: Nimi Kocherlakota, Ralph Obenauf
Presentation Slides
|
|
5/24/2005
| | |
Title: Calibration Strategies and Dilution Practices
Description: We have observed over the years that chemists use a variety of techniques to dilute solutions and calibrate instruments. We have also observed that many techniques in common practice contain an unacceptable amount of error and uncertainty. We wish to promote good laboratory practices and reduce the errors at the bench. The goal is to show calculations, uncertainties and lab practices that will help chemists make better measurements, or understand why they do so well.
Presentor: Bill Hahn
Presentation Slides
|
|
5/24/2005
| | |
Title: Manufacturing, Quality Control and Characterization of SPEX CertiPrep Isotope Standards
Description: Why use Isotope Standards?
For the quantification of trace elements by ICPMS, using isotope dilution techniques has a number of advantages: provides high sensitivity, high accuracy, and it is easy and simple when compared to thermal/surface ioniztion mass spectrometry.
Location: None Scheduled at this time
Presentor: Nimi Kocherlakota, Ralph Obenauf, Laslo Ernyei
Presentation Slides
|
|
5/24/2005
| | |
Title: Quantification of Measurement Uncertainties of Reference Materials by SPEX CertiPrep
Description: An evaluation of the total combined uncertainties of a reference material manufactured by SPEX CertiPrep is provided in the presentation below. Erbium, prepared to give a target value of 1000 mg/L is chosen as an example. High purity Erbium Oxide (Er2O3) which was assayed for Erbium by EDTA titration and trace impurities determined by ICP/ICPMS, was weighed accurately and then dissolved in high pure nitric acid. Erbium concentration in the solution was determined first by wet assay and then by ICP.
Location: None scheduled at this time
Presentor: Ralph Obenauf, Nimi Kocherlakota
Presentation Slides
|
|
5/24/2005
| | |
Title: Implementation of The Performance Testing Program Under NELAC - The SPEX CertiPrep Solution
Description: SPEX CertiPrep Manufactures PT Samples with Years of Experience in this Market.
Manufactured and distributed CRMs for Over 45 Years
· USEPA CRADA Partner for QC Samples Beginning in 1991
· Supplied QC Samples (Mirror PT Samples) for 10 Years
· Well Defined, ISO 9001 Quality System Accredited by UL Since 1994
· Leader in Traceability and Certification
· Technically Qualified, Skilled Personnel
· World-Wide Distribution System
Location: None scheduled at this time
Presentor: Ralph Obenauf, Vanaja Sivakumar
Presentation Slides
|
|
5/24/2005
| | |
Title: Proficiency Testing of Environmental Laboratories
Description: The EPA has successfully transferred the PT program to the private sector. This presentation explains the PT providers role and methods as well as some perspectives on PTs and the USEPA PT program specifically.
Location: None at this time
Presentor: William H. Hahn, Jr.
Presentation Slides
|
|
5/23/2005 - 5/24/2005
| | |
Title: MARM 2005 Middle Atlantic Regional ACS Meeting
Description: Clean Chemistry for Trace Metals Analysis
Location: Rutgers University
Edison
NJ
Presentor: Ralph Obenauf
|
|
5/1/2005
| | |
Title: Problematic Analytes in Environmental Analysis
Description: An open forum for the exchange of specific working knowledge of organic compounds and thier idiosyncracies. Volatile Organics and pH dependency, polymers, dimers and trimers. Flow rates, analytes that decompose within the system and proficiency testing ramifications. Semivolatile Organics and pH dependency, phenols and recoveries, Benzidines and analytical challenges. Pesticides and Herbicides and their breakdown products, esters and anisoles, hydrolizing steps and much more.
Location: Florida State Environmental Analysts
FL
Presentor: William H. Hahn, Jr.
Presentation Slides
|
|
5/1/2005
| | |
Title: Analytical Uncertainty
Description: All analytical measurements have an associated uncertainty. All lab techniques have an associated uncertainty. We wish to promote good laboratory practices and reduce the errors at the bench as well as the regulatory level. Our goal is to show calculations, uncertainties and lab practices that will help chemists and regulators have a better understanding of analytical measurements and their limitations.
Location: Florida State Environmental Analysts
FL
Presentor: William H. Hahn, Jr.
Presentation Slides
|
|
1/1/2005
| | |
Title: Stat. Determination of Uncertainties Associated w/Certified Values of Ion Chromatography Ref. Mat.
Description: Determine the statistical uncertainty associated with the measurement of the concentration of SPEX CertiPrep Fluoride RM, prepared to give a target value of 1,000 mg/L.
Certified value: 995 ± 5 mg/L
The 5 mg/L represents the uncertainty associated with the certified value.
Location: None at this time
Presentor: Dr. Ralph Obenauf and Nimi Kocherlakota
Presentation Slides
|
|
1/1/2005
| | |
Title: Measurement Uncertainty Its NELAC How Do You Approach It
Description: Measurements are made to:
· Accept or reject a product
· Determine if an instrument is running properly
· Assess the value of a product or service
There is always some unknown error associated with every measurement. The quantity of this unknown error can be defined as measurement uncertainty.
To determine the quality of a measured value an estimate of measurement uncertainty, which determines the confidence of measurement must be given.
Location: None at this time
Presentor: Nimi Kocherlakota
Presentation Slides
|
|
1/1/2005
| | |
Title: Determination of Trace Elements in Drinking Water by ICPMS
Description: Objective of the Study
What is in the water that you drink?
Water samples were collected from various states ranging from Arizona to Virginia. Trace metals were determined by ICPMS and Major elements by ICP. Hardness, Fluoride and other anions were also determined.
Location: None at this time
Presentor: Nimi Kocherlakota, Laslo Eenyei, Ralph H. Obenauf
Presentation Slides
|
|
1/1/2005
| | |
Title: Calcium Supplements
Description: Do you want to know what is in your calcium suppliments? Review our presentation to find out what we discovered.
Metuchen
NJ
Presentor: Nimi Kocherlatkota
|
|
8/1/2005 - 8/5/2005
| | |
Title: 54th Annual Denver X-ray conference
Description: Comparison of fusion versus pressed powders in XRF analysis
Colorado Springs
CO
Presentor: John Martin
|
|
3/3/2008
| | |
Title: Analysis of RoHS Directive Elements in Plastics
Description: Abstact coming soon!
Location: Ernest N. Morial Convention Center
New Orleans
LA
Web Site
Presentor: Ralph Obenauf
Comments: Ralph Obenauf, the president of SPEX CertiPrep, will be presenting this talk on "Analysis of RoHS Directive Elements in Plastics" during the workshop on "Facing Analytical Challenges with Reference Materials". The workshop is scheduled during Pittcon on 03/03/08, additional information to follow.
Presentation Slides
|
|
5/1/2005
| | |
Title: Analytical Uncertainty
Description: All analytical measurements have an associated uncertainty. All lab techniques have an associated uncertainty. We wish to promote good laboratory practices and reduce the errors at the bench as well as the regulatory level. Our goal is to show calculations, uncertainties and lab practices that will help chemists and regulators have a better understanding of analytical measurements and their limitations.
Location: Florida State Environmental Analysts
FL
Presentor: William H. Hahn, Jr.
Presentation Slides
|
|
5/1/2006 - 5/4/2006
| | |
Title: BERM 10 - Biological & Environmental
Description: Reporting Values and Uncertainties for Certified Reference Materials Used in ICP and ICPMS Analysis (Chromium VI)
Charleston
SC
Presentor: Ralph Obenauf
|
|
1/1/2005
| | |
Title: Calcium Supplements
Description: Do you want to know what is in your calcium suppliments? Review our presentation to find out what we discovered.
Metuchen
NJ
Presentor: Nimi Kocherlatkota
|
|
5/24/2005
| | |
Title: Calibration Strategies and Dilution Practices
Description: We have observed over the years that chemists use a variety of techniques to dilute solutions and calibrate instruments. We have also observed that many techniques in common practice contain an unacceptable amount of error and uncertainty. We wish to promote good laboratory practices and reduce the errors at the bench. The goal is to show calculations, uncertainties and lab practices that will help chemists make better measurements, or understand why they do so well.
Presentor: Bill Hahn
Presentation Slides
|
|
9/28/2005
| | |
Title: Clean Laboratory Technical Tips
Description:
Location: JAM Annual Meeting
VA
Presentor: Ralph Obenauf, Ph.D.
|
|
5/24/2005
| | |
Title: Common Problems Encountered When Running Performance Testing Samples for Laboratory Accreditation
Description: Performance Evaluation (PE) program, operated by USEPA, was privatized under NELAP as the Performance Testing (PT) Program.
*PT samples are available from PT providers, accredited in specific areas by NVLAP.
*One or two PT’s per year depending on programs.
*We will discuss common pitfalls and problems, which have caused failure for inorganic analytes, and ways to avoid them.
Location: None scheduled at this time
Presentor: Nimi Kocherlakota, Ralph Obenauf
Presentation Slides
|
|
1/1/2005
| | |
Title: Determination of Trace Elements in Drinking Water by ICPMS
Description: Objective of the Study
What is in the water that you drink?
Water samples were collected from various states ranging from Arizona to Virginia. Trace metals were determined by ICPMS and Major elements by ICP. Hardness, Fluoride and other anions were also determined.
Location: None at this time
Presentor: Nimi Kocherlakota, Laslo Eenyei, Ralph H. Obenauf
Presentation Slides
|
|
9/26/2006 - 9/28/2006
| | |
Title: FACSS
Description: "Statistical Determination of Measurement Uncertainty"
Orlando
FL
United States Of America
Presentor: Ralph Obenauf
|
|
8/1/2005 - 8/2/2005
| | |
Title: Good Laboratory Practices seminar, Sponsered by VWWAA
Description: Trace Metals in Chocolate
Charletsville
VA
Presentor: Nimi Kocherlakota
|
|
4/24/2006 - 4/26/2006
| | |
Title: Health Aspects of Calcium and Magnesium in Drinking Water
Description: Determination of Trace Elements in Drinking Water by ICP/MS
Baltimore
MD
Web Site
Presentor: Ralph Obenauf
|
|
1/12/2006 - 1/16/2006
| | |
Title: ICP Winter Conference
Description: Reporting Values and Uncertainties for Certified Reference Materials Used in ICP-MS Analysis.
Tucson
AZ
Presentor: Nimi Kocherlakota and Ralph Obenauf
|
|
1/12/2006 - 1/16/2006
| | |
Title: ICP Winter Conference
Description: Products for Reducing Contamination in the Determination of PPB and PPT Metal Concentrations
Tucson
AZ
Presentor: Nimi Kocherlakota and Ralph Obenauf
|
|
5/24/2005
| | |
Title: Implementation of The Performance Testing Program Under NELAC - The SPEX CertiPrep Solution
Description: SPEX CertiPrep Manufactures PT Samples with Years of Experience in this Market.
Manufactured and distributed CRMs for Over 45 Years
· USEPA CRADA Partner for QC Samples Beginning in 1991
· Supplied QC Samples (Mirror PT Samples) for 10 Years
· Well Defined, ISO 9001 Quality System Accredited by UL Since 1994
· Leader in Traceability and Certification
· Technically Qualified, Skilled Personnel
· World-Wide Distribution System
Location: None scheduled at this time
Presentor: Ralph Obenauf, Vanaja Sivakumar
Presentation Slides
|
|
8/15/2005 - 8/18/2005
| | |
Title: INELA Annual Meeting
Description: Performance Testing Committee
Raleigh
NC
Presentor: Ralph Obenauf
|
|
9/28/2005 - 9/29/2005
| | |
Title: JAM Annual Meeting
Description: Clean Laboratory Techniques and Tips
Location: Virginia
VA
Presentor: Ralph Obenauf
|
|
5/24/2005
| | |
Title: Manufacturing, Quality Control and Characterization of SPEX CertiPrep Isotope Standards
Description: Why use Isotope Standards?
For the quantification of trace elements by ICPMS, using isotope dilution techniques has a number of advantages: provides high sensitivity, high accuracy, and it is easy and simple when compared to thermal/surface ioniztion mass spectrometry.
Location: None Scheduled at this time
Presentor: Nimi Kocherlakota, Ralph Obenauf, Laslo Ernyei
Presentation Slides
|
|
5/23/2005 - 5/24/2005
| | |
Title: MARM 2005 Middle Atlantic Regional ACS Meeting
Description: Clean Chemistry for Trace Metals Analysis
Location: Rutgers University
Edison
NJ
Presentor: Ralph Obenauf
|
|
1/1/2005
| | |
Title: Measurement Uncertainty Its NELAC How Do You Approach It
Description: Measurements are made to:
· Accept or reject a product
· Determine if an instrument is running properly
· Assess the value of a product or service
There is always some unknown error associated with every measurement. The quantity of this unknown error can be defined as measurement uncertainty.
To determine the quality of a measured value an estimate of measurement uncertainty, which determines the confidence of measurement must be given.
Location: None at this time
Presentor: Nimi Kocherlakota
Presentation Slides
|
|
8/1/2005 - 8/2/2005
| | |
Title: Measurement Unsertainty Symposium Wash DC, 2005 Sponsored by NIST
Description: Statistical Determination of Uncertainty in Gravimetric Determinations
Washington
DC
Presentor: Ralph Obenauf
|
|
8/17/2006
| | |
Title: NELAC/INELA Performance Testing Committee
Description: Review and Reorganization of Standards
Kansas City, KS
KS
Presentor: Ralph Obenauf
|
|
10/19/2005
| | |
Title: PPB/PPT Analysis
Description: More details to come.
Location: US EPA
TX
Presentor: Nimi Kocherlakota
|
|
5/1/2005
| | |
Title: Problematic Analytes in Environmental Analysis
Description: An open forum for the exchange of specific working knowledge of organic compounds and thier idiosyncracies. Volatile Organics and pH dependency, polymers, dimers and trimers. Flow rates, analytes that decompose within the system and proficiency testing ramifications. Semivolatile Organics and pH dependency, phenols and recoveries, Benzidines and analytical challenges. Pesticides and Herbicides and their breakdown products, esters and anisoles, hydrolizing steps and much more.
Location: Florida State Environmental Analysts
FL
Presentor: William H. Hahn, Jr.
Presentation Slides
|
|
5/24/2005
| | |
Title: Proficiency Testing of Environmental Laboratories
Description: The EPA has successfully transferred the PT program to the private sector. This presentation explains the PT providers role and methods as well as some perspectives on PTs and the USEPA PT program specifically.
Location: None at this time
Presentor: William H. Hahn, Jr.
Presentation Slides
|
|
5/24/2005
| | |
Title: Quantification of Measurement Uncertainties of Reference Materials by SPEX CertiPrep
Description: An evaluation of the total combined uncertainties of a reference material manufactured by SPEX CertiPrep is provided in the presentation below. Erbium, prepared to give a target value of 1000 mg/L is chosen as an example. High purity Erbium Oxide (Er2O3) which was assayed for Erbium by EDTA titration and trace impurities determined by ICP/ICPMS, was weighed accurately and then dissolved in high pure nitric acid. Erbium concentration in the solution was determined first by wet assay and then by ICP.
Location: None scheduled at this time
Presentor: Ralph Obenauf, Nimi Kocherlakota
Presentation Slides
|
|
8/1/2005
| | |
Title: Quantitative Calculation of the Statistical Uncertainty Associated with a Gold Reference Material
Location: Measurement Uncertainty Symposium
Washington
DC
Presentor: Ralph Obenauf, Ph.D.
|
|
1/1/2005
| | |
Title: Stat. Determination of Uncertainties Associated w/Certified Values of Ion Chromatography Ref. Mat.
Description: Determine the statistical uncertainty associated with the measurement of the concentration of SPEX CertiPrep Fluoride RM, prepared to give a target value of 1,000 mg/L.
Certified value: 995 ± 5 mg/L
The 5 mg/L represents the uncertainty associated with the certified value.
Location: None at this time
Presentor: Dr. Ralph Obenauf and Nimi Kocherlakota
Presentation Slides
|
|
2/18/2007 - 2/23/2007
| | |
Title: Statistical Determination of Measurement Uncertainty
Description: Discussions of the state-of-art and new developments in all aspects of plasma spectrochemistry
Guidance to determining detection limits
Taorima
Italty
Presentor: The Winter Conference on Plasma Spectrochemistry
|
|
7/13/2005 - 7/14/2005
| | |
Title: Statistical Uncertainty
Description: For more information please contact Susan Basara at sbasara@anachemia.com
Location: Webinar hosted by Anachemia
Presentor: Ralph Obenauf and Nimi Kocherlakota
|
|
4/1/2007 - 5/1/2007
| | |
Title: Trace Elements in Fish And Fish Oil Supplements
Description: Safe levels of metals in Fish and Fish Oil Supplements.
Presentor: Vanaja Sivakumar
Presentation Slides
|
|
8/1/2005
| | |
Title: Trace Metals in Chocolate.
Description: This presentation is informative for both the lover of chocolate as well as the curious scientist. After months of testing chocolates from around the world, we found out that chocolate may have a lot more in it than the rich, smooth taste we have all grown to love.
Location: Good Laboratory Practices Seminar
Charlottesville
VA
Presentor: Nimi Kocherlakota
|
|
10/25/2006
| | |
Title: UKRM WG - United Kingdoms Reference Materials Working Group
Description: SPEX CertiPrep Ltd's Certified Reference Materials
London
United Kingdom
Presentor: Ralph Obenauf
|
|
8/1/2006
| | |
Title: Uncertainties
Description: Uncertainties Talk
Presentor: Bill Hahn
|
|
8/28/2006
| | |
Title: Uncertainties in Dilution Practices and Calibrations
Description: Uncertainties in Dilution Practices and Calibrations
Presentor: Bill Hahn
Presentation Slides
|
|
1/7/2008 - 1/12/2008
| | |
Title: Use of Isotope Dilution Technique in Analyzing Plastic Materials
Description: The European Directive, RoHS restricts the use of hazardous substances such as Lead, Cadmium, Chromium(VI), Mercury and brominated polybihphenyl ethers in electronic and other equipment. Most of the methods currently used are not appropriate for all products tested and the results differ from method to method. It is vital to develop standard methods that produce reliable results that can be implemented by all laboratories. Isotope dilution is one of the most accurate analytical methods for concentration determination. Since all elements of interest in the RoHS directive have two or more naturally occurring isotopes, the isotope dilution technique renders an interesting solution to the determination of these elements. Results of the analysis of Mercury, Cadmium and Chromium VI in plastics by isotopic dilution will be presented.
Location: Pechanga Resort and Casino
45000 Pechanga Parkway Formerly Pala Road
Temecula
CA
Web Site
Location Phone: (951) 693-1819
Presentor: Ralph Obenauf, Ph.D
|
|
10/19/2005 - 10/20/2005
| | |
Title: USEPA
Description: Metals Analysis at PPB and PPT Levels
Location: Texas
TX
Presentor: Nimi Kocherlakota
|
|
5/24/2005
| | |
Title: Manufacturing, Quality Control and Characterization of SPEX CertiPrep Isotope Standards
Description: Why use Isotope Standards?
For the quantification of trace elements by ICPMS, using isotope dilution techniques has a number of advantages: provides high sensitivity, high accuracy, and it is easy and simple when compared to thermal/surface ioniztion mass spectrometry.
Location: None Scheduled at this time
Presentor: Nimi Kocherlakota, Ralph Obenauf, Laslo Ernyei
Presentation Slides
|
|
5/24/2005
| | |
Title: Quantification of Measurement Uncertainties of Reference Materials by SPEX CertiPrep
Description: An evaluation of the total combined uncertainties of a reference material manufactured by SPEX CertiPrep is provided in the presentation below. Erbium, prepared to give a target value of 1000 mg/L is chosen as an example. High purity Erbium Oxide (Er2O3) which was assayed for Erbium by EDTA titration and trace impurities determined by ICP/ICPMS, was weighed accurately and then dissolved in high pure nitric acid. Erbium concentration in the solution was determined first by wet assay and then by ICP.
Location: None scheduled at this time
Presentor: Ralph Obenauf, Nimi Kocherlakota
Presentation Slides
|
|
5/24/2005
| | |
Title: Implementation of The Performance Testing Program Under NELAC - The SPEX CertiPrep Solution
Description: SPEX CertiPrep Manufactures PT Samples with Years of Experience in this Market.
Manufactured and distributed CRMs for Over 45 Years
· USEPA CRADA Partner for QC Samples Beginning in 1991
· Supplied QC Samples (Mirror PT Samples) for 10 Years
· Well Defined, ISO 9001 Quality System Accredited by UL Since 1994
· Leader in Traceability and Certification
· Technically Qualified, Skilled Personnel
· World-Wide Distribution System
Location: None scheduled at this time
Presentor: Ralph Obenauf, Vanaja Sivakumar
Presentation Slides
|
|
5/24/2005
| | |
Title: Proficiency Testing of Environmental Laboratories
Description: The EPA has successfully transferred the PT program to the private sector. This presentation explains the PT providers role and methods as well as some perspectives on PTs and the USEPA PT program specifically.
Location: None at this time
Presentor: William H. Hahn, Jr.
Presentation Slides
|
|
1/1/2005
| | |
Title: Stat. Determination of Uncertainties Associated w/Certified Values of Ion Chromatography Ref. Mat.
Description: Determine the statistical uncertainty associated with the measurement of the concentration of SPEX CertiPrep Fluoride RM, prepared to give a target value of 1,000 mg/L.
Certified value: 995 ± 5 mg/L
The 5 mg/L represents the uncertainty associated with the certified value.
Location: None at this time
Presentor: Dr. Ralph Obenauf and Nimi Kocherlakota
Presentation Slides
|
|
1/1/2005
| | |
Title: Measurement Uncertainty Its NELAC How Do You Approach It
Description: Measurements are made to:
· Accept or reject a product
· Determine if an instrument is running properly
· Assess the value of a product or service
There is always some unknown error associated with every measurement. The quantity of this unknown error can be defined as measurement uncertainty.
To determine the quality of a measured value an estimate of measurement uncertainty, which determines the confidence of measurement must be given.
Location: None at this time
Presentor: Nimi Kocherlakota
Presentation Slides
|
|
1/1/2005
| | |
Title: Determination of Trace Elements in Drinking Water by ICPMS
Description: Objective of the Study
What is in the water that you drink?
Water samples were collected from various states ranging from Arizona to Virginia. Trace metals were determined by ICPMS and Major elements by ICP. Hardness, Fluoride and other anions were also determined.
Location: None at this time
Presentor: Nimi Kocherlakota, Laslo Eenyei, Ralph H. Obenauf
Presentation Slides
|
|
7/13/2005 - 7/14/2005
| | |
Title: Statistical Uncertainty
Description: For more information please contact Susan Basara at sbasara@anachemia.com
Location: Webinar hosted by Anachemia
Presentor: Ralph Obenauf and Nimi Kocherlakota
|
|
5/24/2005
| | |
Title: Common Problems Encountered When Running Performance Testing Samples for Laboratory Accreditation
Description: Performance Evaluation (PE) program, operated by USEPA, was privatized under NELAP as the Performance Testing (PT) Program.
*PT samples are available from PT providers, accredited in specific areas by NVLAP.
*One or two PT’s per year depending on programs.
*We will discuss common pitfalls and problems, which have caused failure for inorganic analytes, and ways to avoid them.
Location: None scheduled at this time
Presentor: Nimi Kocherlakota, Ralph Obenauf
Presentation Slides
|
|
8/1/2006
| | |
Title: Uncertainties
Description: Uncertainties Talk
Presentor: Bill Hahn
|
|
8/28/2006
| | |
Title: Uncertainties in Dilution Practices and Calibrations
Description: Uncertainties in Dilution Practices and Calibrations
Presentor: Bill Hahn
Presentation Slides
|
|
4/1/2007 - 5/1/2007
| | |
Title: Trace Elements in Fish And Fish Oil Supplements
Description: Safe levels of metals in Fish and Fish Oil Supplements.
Presentor: Vanaja Sivakumar
Presentation Slides
|
|
5/24/2005
| | |
Title: Calibration Strategies and Dilution Practices
Description: We have observed over the years that chemists use a variety of techniques to dilute solutions and calibrate instruments. We have also observed that many techniques in common practice contain an unacceptable amount of error and uncertainty. We wish to promote good laboratory practices and reduce the errors at the bench. The goal is to show calculations, uncertainties and lab practices that will help chemists make better measurements, or understand why they do so well.
Presentor: Bill Hahn
Presentation Slides
|
|
1/12/2006 - 1/16/2006
| | |
Title: ICP Winter Conference
Description: Reporting Values and Uncertainties for Certified Reference Materials Used in ICP-MS Analysis.
Tucson
AZ
Presentor: Nimi Kocherlakota and Ralph Obenauf
|
|
1/12/2006 - 1/16/2006
| | |
Title: ICP Winter Conference
Description: Products for Reducing Contamination in the Determination of PPB and PPT Metal Concentrations
Tucson
AZ
Presentor: Nimi Kocherlakota and Ralph Obenauf
|
|
1/7/2008 - 1/12/2008
| | |
Title: Use of Isotope Dilution Technique in Analyzing Plastic Materials
Description: The European Directive, RoHS restricts the use of hazardous substances such as Lead, Cadmium, Chromium(VI), Mercury and brominated polybihphenyl ethers in electronic and other equipment. Most of the methods currently used are not appropriate for all products tested and the results differ from method to method. It is vital to develop standard methods that produce reliable results that can be implemented by all laboratories. Isotope dilution is one of the most accurate analytical methods for concentration determination. Since all elements of interest in the RoHS directive have two or more naturally occurring isotopes, the isotope dilution technique renders an interesting solution to the determination of these elements. Results of the analysis of Mercury, Cadmium and Chromium VI in plastics by isotopic dilution will be presented.
Location: Pechanga Resort and Casino
45000 Pechanga Parkway Formerly Pala Road
Temecula
CA
Web Site
Location Phone: (951) 693-1819
Presentor: Ralph Obenauf, Ph.D
|
|
8/1/2005 - 8/5/2005
| | |
Title: 54th Annual Denver X-ray conference
Description: Comparison of fusion versus pressed powders in XRF analysis
Colorado Springs
CO
Presentor: John Martin
|
|
8/1/2005
| | |
Title: Quantitative Calculation of the Statistical Uncertainty Associated with a Gold Reference Material
Location: Measurement Uncertainty Symposium
Washington
DC
Presentor: Ralph Obenauf, Ph.D.
|
|
8/1/2005 - 8/2/2005
| | |
Title: Measurement Unsertainty Symposium Wash DC, 2005 Sponsored by NIST
Description: Statistical Determination of Uncertainty in Gravimetric Determinations
Washington
DC
Presentor: Ralph Obenauf
|
|
5/1/2005
| | |
Title: Problematic Analytes in Environmental Analysis
Description: An open forum for the exchange of specific working knowledge of organic compounds and thier idiosyncracies. Volatile Organics and pH dependency, polymers, dimers and trimers. Flow rates, analytes that decompose within the system and proficiency testing ramifications. Semivolatile Organics and pH dependency, phenols and recoveries, Benzidines and analytical challenges. Pesticides and Herbicides and their breakdown products, esters and anisoles, hydrolizing steps and much more.
Location: Florida State Environmental Analysts
FL
Presentor: William H. Hahn, Jr.
Presentation Slides
|
|
5/1/2005
| | |
Title: Analytical Uncertainty
Description: All analytical measurements have an associated uncertainty. All lab techniques have an associated uncertainty. We wish to promote good laboratory practices and reduce the errors at the bench as well as the regulatory level. Our goal is to show calculations, uncertainties and lab practices that will help chemists and regulators have a better understanding of analytical measurements and their limitations.
Location: Florida State Environmental Analysts
FL
Presentor: William H. Hahn, Jr.
Presentation Slides
|
|
9/26/2006 - 9/28/2006
| | |
Title: FACSS
Description: "Statistical Determination of Measurement Uncertainty"
Orlando
FL
United States Of America
Presentor: Ralph Obenauf
|
|
2/18/2007 - 2/23/2007
| | |
Title: Statistical Determination of Measurement Uncertainty
Description: Discussions of the state-of-art and new developments in all aspects of plasma spectrochemistry
Guidance to determining detection limits
Taorima
Italty
Presentor: The Winter Conference on Plasma Spectrochemistry
|
|
8/17/2006
| | |
Title: NELAC/INELA Performance Testing Committee
Description: Review and Reorganization of Standards
Kansas City, KS
KS
Presentor: Ralph Obenauf
|
|
3/3/2008
| | |
Title: Analysis of RoHS Directive Elements in Plastics
Description: Abstact coming soon!
Location: Ernest N. Morial Convention Center
New Orleans
LA
Web Site
Presentor: Ralph Obenauf
Comments: Ralph Obenauf, the president of SPEX CertiPrep, will be presenting this talk on "Analysis of RoHS Directive Elements in Plastics" during the workshop on "Facing Analytical Challenges with Reference Materials". The workshop is scheduled during Pittcon on 03/03/08, additional information to follow.
Presentation Slides
|
|
4/24/2006 - 4/26/2006
| | |
Title: Health Aspects of Calcium and Magnesium in Drinking Water
Description: Determination of Trace Elements in Drinking Water by ICP/MS
Baltimore
&nb | | | |