Category Archives: PFAS

SGS AXYS Now Offers PFAS Analysis by the new EPA 1633 Draft Method

September 15, 2021. On September 2, 2021, the US Environmental Protection Agency (EPA) has announced the availability of the EPA 1633 Draft PFAS method for the measurement of PFAS in wastewater, surface water, groundwater, soils, and tissue. For all matrices, EPA 1633 provides a standardized and validated approach for PFAS monitoring. Whether it is tissue, […]

SGS AXYS’ Drs. Hamilton and Chandramouli Praised by NAVSEA for Contribution to Testing Method

Time and time again, we can find members of our SGS team in the mix in providing important innovations and updates within so many different business sectors in regions across the world. The following is another instance worthy of our SGS pride. On August 10, 2021, the note that follows was posted online as part […]

SGS LIVE PRESENTS “EMERGING CONTAMINANTS: A HISTORY OF CONCERN”

Sarah De Luca, the Business Development Manager for North American Environment, Health and Safety, Conventional Labs at SGS sits down with Dr. Bharat Chandramouli for our first ever SGS Live on Wednesday, March 24th at 1:00 PM EDT/10:00AM PDT. Their discussion, entitled Emerging Contaminants: A History of Concern, will examine the life cycle of contaminants […]

SGS AXYS Employs New Method to Measure PFAS in Ambient Air at Very Low Concentrations

Problem While PFAS in drinking water and other ecosystem components have raised alarms throughout the world for some time, PFAS in ambient air is receiving increasing attention for numerous reasons including: Reports of elevated concentrations in communities adjacent to factories producing or using PFAS Evidence of PFAS emissions from incinerators causing elevated concentrations nearby Once […]

SGS Experts Offer Expertise on Emerging Contaminants at the Upcoming Virtual AEHS Conference on Soils, Sediments, Water and Energy

Two experts from SGS will share their knowledge on issues related to emerging contaminants with the virtual AEHS Conference on Soils, Sediments, Water and Energy audience, October 19-23. Dr. Bharat Chandramouli, Ph.D., SGS Environmental Laboratory Product Manager, North America, and Geoffrey Pellechia, SGS National Sales Manager, PFAS and Ultratrace, will be presenters at AEHS. A […]

US DoD and EPA Update on PFAS Methods

The annual DoD EMDQ Workshop, usually a source of great information and networking, was cancelled this year. To cover updates that would have been discussed at the workshop, the DoD team hosted an informative webinar on multiple topics. Highlighted below are some PFAS methods updates from Janice Willey’s May 19 presentation. The PFAS Isotope Dilution […]

Extracting Cationic and Zwitterionic PFAS from AFFF-Contaminated Soils

Image of soil

The PFAS on the regulatory radar, such as PFOS, PFOA, and other related targets on typical laboratory lists, are anionic, or neutral. Therefore, the methods are optimized for anionic PFAS and feature standardized solid extraction using methanol containing ammonia, and weak anion exchange cleanup. However, many aqueous film forming foam (AFFF) active ingredients can be […]

How does PFAS contamination affect microbial communities?

The widespread use of aqueous film forming foams (AFFF) containing PFAS at airports all over the world has resulted in contamination of ground and surface water, and soil. In addition to the many ecosystem effects that are still being studied, how are microbial communities affected? Which PFAS are microbes able to degrade and how does […]

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 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 […]

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