The development of an automated online SPE–LC–MS-MS method for the analysis of 25-OH-vitamin D2, 25-OH-vitamin D3, and 3-Epi-25-OH-vitamin D3 from human serum.
Analysis of Ultrashort-Chain and Short-Chain (C1 to C4) PFAS in Water Samples (May 2025)
May 15th 2025In this study, an accurate, reliable analytical LC-MS/MS method for PFAS in water was developed to specifically quantify C1 to C4 PFAS in both potable and non-potable sources. A direct injection workflow was implemented to simplify the testing process and to avoid potential contamination originating from poor sample preparation procedures.
Analysis of PFAS in Milk by LC-MS/MS
May 15th 2025Dairy milk is one commodity that can be impacted by environmental contaminants, such as PFAS, so it is important to implement extensive, robust, and accurate testing. In this work, a sensitive and reliable method was developed for the analysis of PFAS in milk by LC-MS/MS at levels as low as 0.01 µg/kg.
Columns & Lab Supplies for PFAS Analysis
May 15th 2025Finding suitable columns and products for PFAS analysis can be simplified using the product guide tables below, which detail the lab supplies for PFAS analysis that are appropriate for widely accepted test methods from around the world, including U.S. agencies (CDC, EPA, FDA, and USDA); European agencies (DIN); and international standards (ASTM and ISO).
Pro EZLC Software Simplifies LC Method Development
May 15th 2025Develop PFAS methods in seconds with Restek’s unique Pro EZLC Chromatogram Modeler. This powerful modeling tool is completely free and has a library of dozens of PFAS compounds that you can use to develop methods, reduce run times, and optimize run conditions.