EPA Method 1664, Revision A describes the determination of oil and grease from liquid (typically water) samples.
EPA Method 1664, Revision A, n-Hexane Extractable Material (HEM; Oil and Grease) and Silica Gel-Treated Hexane Extractable Material (SGT-HEM; Non‑polar Material) by Extraction and Gravimetry, describes the determination of oil and grease from liquid (typically water) samples.
Inside the Laboratory: The Richardson Group at the University of South Carolina
November 20th 2024In this edition of “Inside the Laboratory,” Susan Richardson of the University of South Carolina discusses her laboratory’s work with using electron ionization and chemical ionization with gas chromatography–mass spectrometry (GC–MS) to detect DBPs in complex environmental matrices, and how her work advances environmental analysis.
GC–MS Targeted Analysis of PFAS Helps Expand Knowledge of Toxicokinetic Data
November 1st 2024Limited toxicokinetic and toxicologic information is available about a diverse set of per- and polyfluoroalkyl substances (PFAS), but methods based on gas chromatography–tandem mass spectrometry (GC–MS/MS) can help unravel some of the mystery.