36 Analytical Instrumentation 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 effi ciency and saving time and money for busy laboratories.
To ensure accuracy and confi dence 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 signifi cantly 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 fi ltration.
Amanda Cronin, PFAS Laboratory Supervisor at Katahdin Analytical Services and a beta tester for the cartridges, praised their effi ciency, 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 effi ciency.”
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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In today’s dynamic laboratory environments, ensuring an effi cient gas supply is crucial for seamless workfl ows and accurate results. Say goodbye to the hassle of cylinder changes and fl uctuating purity levels with F-DGSi Generators. Discover the Nitrogen supply solutions for your LC-MS/MS instruments with the CALYPSO gas generators manufactured by F-DGSi. The CALYPSO Nitrogen generators offer you a choice between Pressure Swing Adsorption and Membrane technologies to meet diverse purity and application requirements. The modular COSMOS range manufactured by F-DGSi allows your laboratory to combine Hydrogen, Nitrogen and Zero Air generation in one compact and stackable solution. Choose from standard or high purity models to suit the gas requirements of your GC instruments. The multi-gas solutions allow you to produce either Nitrogen and Pure Air for GC, GC-2D, MP-AES & LC-MS applications or Hydrogen and Zero Air for your GC applications using just one generator. The F-DGSi products provide you with absolute peace of mind as the generators offer you: Convenience - 24/7 production eliminating the need for cylinder changes; Constant purity - gas purity is constant and no extra gas fi lters are needed; Economical solution - low and stable ongoing gas costs; Safety – removing the risk of leaks and no long gas lines are required; Green solution - no repeated gas deliveries, energy effi ciency; Effi ciency – locating the generator on the bench or on the fl oor next to the instrument. Don’t buy your gas, make it.
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A revolutionary approach to calibration gas standards and complex gas mixtures
KIN-TEK Analytical, Inc. (KIN-TEK) is a preferred provider of devices and instrumentation used for creating trace concentration calibration gas standards and complex gas mixtures. KIN-TEK revolutionized permeation tube technology and further developed it to produce Trace Source™ Disposable and Refi llable Permeation Tubes.
Trace Source™ Disposable and Refi llable Permeation tubes emit an accurate NIST Traceable, steady fl ow (nanoliters/minute) of pure component gas. KIN-TEK provides permeation tubes for over 550 chemical compounds, including toxic air pollutants, VOC’s, acid gases, amines, sulfurs, and hydrides.
KIN-TEK’s Trace Source™ Permeation Tube technology is employed in KIN-TEK’s Gas Standard Generators to provide accurate, on-demand chemical gas standards. KIN-TEK’s products include a range of gas blenders, gas standard generators (with accompanying modules), and permeation devices.
• Span Pac™ I — Industrial Gas Standard Generator for on-line process analyzers and continuous emissions monitors.
• FlexStream™ — Fully automated and expandable Gas Standard Generator System for precision calibration gas mixtures.
• 491Flex™ — Manually operated and expandable Gas Standard Generator System for precision calibration gas mixtures.
• EcoFlex™ — Simplifi ed stand-alone Gas Standard Generator System for trace concentration gas mixtures.
• CO395Flex™ — Stand-alone Certifi cation Oven used to maintain permeation tubes in a constant equilibrated state ready for immediate use.
• Span Pac™ H2 moisture and deliver trace quantities of H2
O — Calibrator for trace moisture monitors designed to exclude atmospheric O.
• FlexMixer™ Multi-Gas Blending System – Multi-Gas Blending/Diluting System generates multi-point gas standards for analyzer calibration, fi lls test volumes for research purposes, or dilutes select gas sources.
KIN-TEK’s Base module gas standard generators can be operated as stand-alone calibrators or be combined into a multi-modular system confi gured to solve the most complex applications.
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