Bile Acids Interferences in PFAS Analysis

Bile acids structure and name

Can bile acids found in plasma, eggs, liver and other biological samples interfere with PFAS analysis? Yes! But there are ways to avoid these interferences and produce reliable data. Bile acids and their salts are either synthesized in the liver or formed from bacterial activity. They are the major constituents of bile and help digest […]

SGS AXYS Data Used to Assess Phthalate Levels in Children

Baby photo

Phthalates, used as plasticizers in many plastics including polyethylene, polypropylene and more, have been associated with endocrine disruption. But, given their ubiquity in the environment, it is challenging to really pinpoint exposure in humans. Phthalates are metabolized in the body into monophthalate ester metabolites and excreted in urine. So, measuring these phthalate ester metabolites in […]

SGS AXYS Features POPs, CEC and PFAS Expertise at SETAC NA

SGS AXYS will be featuring our work on PFAS, neonicotinoids, bisphenols, metabolomics and more at the SETAC North America 40th Annual Meeting, November 3-7 in Toronto. As a world leading specialist in the measurement of persistent organic pollutants, emerging contaminants and endogenous metabolites, SGS AXYS contributes to the SETAC body of knowledge this year with […]

SGS AXYS Scientists Publish Timely Study on PFAS Storage Stability

While perfluorinated carboxylates and sulfonates (PFAA) such as PFOA and PFOS are known to be stable under all storage/environmental conditions, it is well known that many other PFAS, including PFAA precursors can transform in the environment from biological and chemical processes. But little was known about their stability in environmental samples sent to laboratory and […]