Ask the Expert Question:
An industrial permittee has a wastewater that has a slight pink coloration after the pretreatment process. The samples need to be analyzed for Phenol in accordance with 40 CFR 403 and 40 CFR 136. Will the pink coloration cause interference with the analysis?
Experts Response:
The pink color will probably be removed in the distillation, but one way of being sure would be to conduct the test without the addition of the 4-aminoantipyrene color reagent. This should give a result of close to zero if there is no interference. If there is interference, the phenolics result could be approximated by subtracting the value obtained without adding the reagent to the value obtained with adding the reagent.
View Dr. Richard Burrows expert profile
Thursday, June 30, 2011
Monday, June 20, 2011
Detection, Quantification and Calibration: Impacts on Data Quality in Environmental Chemistry
Ask the Expert Webinar Series
June 23, 2011
1:30pm EST
Over the last 20-30 years there have been tremendous advances in analytical instrumentation - enabling faster analysis with better precision and accuracy than ever before. We are also responding to needs for ever lower reporting limits. Adoption of The NELAC Institute (TNI) standards has also helped to improve and standardize quality control procedures across the board.
However, when we look at the fundamental techniques that we use to translate instrument response into data of "known and documented quality" - calibration, detection and quantification - nothing much has changed. This webinar will examine the current state of the art for establishing these critical method properties, and will propose some possible avenues for improvement.
The presenter is Chair of the TNI Environmental Monitoring Methods Expert Committee, currently tasked with developing new standards pertaining to detection, quantification and calibration techniques.
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June 23, 2011
1:30pm EST
Over the last 20-30 years there have been tremendous advances in analytical instrumentation - enabling faster analysis with better precision and accuracy than ever before. We are also responding to needs for ever lower reporting limits. Adoption of The NELAC Institute (TNI) standards has also helped to improve and standardize quality control procedures across the board.
However, when we look at the fundamental techniques that we use to translate instrument response into data of "known and documented quality" - calibration, detection and quantification - nothing much has changed. This webinar will examine the current state of the art for establishing these critical method properties, and will propose some possible avenues for improvement.
The presenter is Chair of the TNI Environmental Monitoring Methods Expert Committee, currently tasked with developing new standards pertaining to detection, quantification and calibration techniques.
Register Now for the presentation
Tuesday, June 14, 2011
Collecting and Reporting Quality Data for Vapor Intrusion
TestAmerica Ask the Expert Webinar Series
June 16, 2011
1:30pm EST
The process of systematically evaluating the indoor inhalation risk from sub-surface vapors began with the EPA's publishing of "OSWER Draft Guidance for Evaluating the Vapor Intrusion to Indoor Air Pathway from Groundwater and Soils (Subsurface Vapor Intrusion Guidance)" in 2002. That document served as the genesis for the multitude of regulations, programs and methods that are being employed in this arena today.
As these regulations and programs have developed and matured, the clarity to the overall process of collecting and reporting quality data has become a difficult highway to navigate. This presentation will focus on clearing the landscape to facilitate navigation through the sample collection and data reporting process in support of these regulations and programs.
The presentation will be given from the perspective of an environmental testing laboratory and our 10 years of experience supporting Vapor Intrusion investigations.
June 16, 2011
1:30pm EST
The process of systematically evaluating the indoor inhalation risk from sub-surface vapors began with the EPA's publishing of "OSWER Draft Guidance for Evaluating the Vapor Intrusion to Indoor Air Pathway from Groundwater and Soils (Subsurface Vapor Intrusion Guidance)" in 2002. That document served as the genesis for the multitude of regulations, programs and methods that are being employed in this arena today.
As these regulations and programs have developed and matured, the clarity to the overall process of collecting and reporting quality data has become a difficult highway to navigate. This presentation will focus on clearing the landscape to facilitate navigation through the sample collection and data reporting process in support of these regulations and programs.
The presentation will be given from the perspective of an environmental testing laboratory and our 10 years of experience supporting Vapor Intrusion investigations.
Register Now for the presentation
Monday, June 6, 2011
TestAmerica has a new Air, Vapor and Gas Resources Page
TestAmerica Laboratories, Inc., with over 25 years of specialized experience in air analysis, is one of the nation's largest providers of analytical support services dedicated to air, vapor and gas testing.TestAmerica routinely shares our knowledge base of information on our broad range of method capabilities, regulatory requirements, sample collection and handling procedures, achieving defensible data and data management practices with our clients. Supported by one of the largest inventories of sampling media in the nation, TestAmerica is ready to support you with your next sampling project.
The information provided in the Air, Vapor and Gas section will assist you in your initial navigation of the complex arena of air, vapor and gas analysis.
Contact a TestAmerica Air Expert, for additional assistance with your projects, please visit TestAmerica's Air, Vapor and Gas Resource Page
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