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TestAmerica Expert to Present at AEHS Annual Conference

Sacramento, CA – WEBWIRE

TestAmerica, the leader in environmental testing, is pleased to announce its participation in the Association for Environmental Health and Sciences Foundation’s 28th Annual International Conference on Soil, Water, Energy and Air in San Diego, California.  TestAmerica Expert, Karla Buechler, will deliver a presentation entitled Closing the PFAS Mass Balance: The Total Oxidizable Precursor (TOP) Assay on Wednesday, March 21 as part of the Conference’s session on Per- and Polyfluoroalkyl Substances (PFAS).
Ms. Buechler’s presentation will focus on the emerging analytical practice of utilizing Total Oxidizable Precursor (TOP) Assay as a means of identifying PFAS risk potential present in the environment.  Current and historical methodologies for the analysis of PFAS compounds are designed to measure a discrete list of approximately 20 compounds.  There are, however, many additional PFAS compounds that are not determined as discrete compounds by these existing analytical methods, thus resulting in a potentially underestimated PFAS risk potential.
The TOP assay procedure rapidly converts perfluoroalkyl acid (PFAA) precursors into PFAAs, including Perfluorooctanoic acid (PFOA), using a hydroxyl radical-based chemical oxidation method.  TOP Assay allows for quantification of PFAS compounds that could be converted to PFAAs in the environment, thus providing a more accurate PFAS risk assessment when compared to a stand-alone PFAS analysis. TestAmerica’s Sacramento, CA laboratory is the leading commercial laboratory offering PFAS and TOP Assay analyses in the United States. 
Ms. Karla Buechler has more than 30 years’ experience in the environmental testing industry, and is renowned in the industry for her knowledge on PFAS analytical practices and other chromatography systems, such as Liquid Chromatography Mass Spectrometry and High Resolution Mass Spectrometry.  
About TestAmerica
TestAmerica is the leading environmental testing firm in the United States, with over 80 locations providing innovative technical expertise and comprehensive analytical testing services. Specialty analyses include source, ambient and indoor air, water quality, compliance, desalination, shale gas, specialty organics, emergency response, industrial hygiene, dioxins, drinking water, sediments and tissues, PFAS and emerging contaminants, explosives, treatability studies, Federal/DoD, and radiochemistry and mixed waste testing.
TestAmerica affiliate companies include EMLab P&K, the leader in analytical microscopy and indoor air quality; and TestAmerica Air Emissions Corp. (METCO Environmental), specializing in air emissions testing. TestAmerica currently employs more than 2,000 professionals dedicated to exceptional service and solutions for our clients’ environmental testing needs.


 TOP Assay

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