• Dual-phase cartridges for streamlined PFAS testing

Preparative Chromatography

Dual-phase cartridges for streamlined PFAS testing

Waters Corporation announces the release of Oasis WAX/GCB and GCB/WAX PFAS Analysis Cartridges, designed to simplify and expedite sample preparation for EPA 1633 testing. These cartridges are engineered for analysing PFAS concentrations in non-potable water, soils, biosolids, and tissue. The innovative design reduces sample preparation time by 20% and cuts sample processing time by approximately 30 minutes per batch, enhancing efficiency and saving time and money for busy laboratories.

To ensure accuracy and confidence in test results, the Oasis cartridges are QC-tested by an accredited laboratory for low residual PFAS, reducing the need for troubleshooting contamination issues. Erin Chambers, Vice President of Consumables and Lab Automation at Waters Corporation, stated: "The new Oasis WAX/GCB and GCB/WAX Cartridges simplify and expedite complex sample preparations, replacing a laborious two-step process and significantly reducing preparation and processing time."

The cartridges integrate two clean-up steps required by EPA Method 1633: a Weak Anion-Exchange (WAX) cartridge and dispersive solid phase extraction (dSPE) graphitized carbon black (GCB). This combination makes the cartridges faster and easier to use than traditional methods, eliminating manual steps such as weighing loose GCB, shaking, centrifugation, and filtration.

Amanda Cronin, PFAS Laboratory Supervisor at Katahdin Analytical Services and a beta tester for the cartridges, praised their efficiency, stating: "These cartridges save time and maintain laboratory cleanliness by eliminating the loose carbon step. The time savings is key for us, making the Waters cartridges our choice for efficiency."

Oasis WAX/GCB and GCB/WAX Cartridges are the latest additions to Waters' PFAS Testing Solutions portfolio, supporting the growing demand for PFAS environmental testing. In 2023, PFAS chemicals led to over $11 billion in legal settlements, and major regulations are expected this year under CERCLA and the Safe Drinking Water Act. Accurate PFAS testing is increasingly critical for compliance across various industries.

Waters Oasis WAX/GCB and GCB/WAX Cartridges meet all EPA Method 1633 requirements for aqueous and solid samples and are available in packs of 30 and 300 cartridges.

More information online


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