Useful and relevant discussions related to the gas chromatography industry including product information, troubleshooting, FAQ and recommendations from skilled experts.

  1. Chromatography Research Supplies  (CRS) now part of the Trajan family of brands

    Chromatography Research Supplies  (CRS) now part of the Trajan family of brands

    Trajan Scientific and Medical has completed its acquisition of Chromatography Research Supplies, Inc. (CRS). The acquisition of CRS is highly complementary to Trajan’s product portfolio in the analytical workflow and consolidates Trajan’s current market-leading position in gas chromatography sample introduction. For over 25 years CRS has been led by Glenn Thomas (owner) and Debbie Clark (VP). The acquisition sees Glenn move into retirement and Debbie continuing to manage the Louisville site, reporting to Kayte Parlevliet (General Manager Separation Science Business Unit, Trajan). Debbie Clark said: “CRS and Trajan are a natural fit through product offerings as well as a company vision that places value on our employees and strives to leave the world in a better place than when we found it. The team is excited for the future and to move forward now as Trajan Louisville”.

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  2. New CRS Endura-Seals Injection Port Septa

    New CRS Endura-Seals Injection Port Septa

    Endura-Seals are the CRS alternative to typical silicone-rubber injection port septa for gas chromatography. They work in a 2 part sealing system that includes the septa and the sealing nut. The duckbill valve in the Endura-Seal is much more resilient to needle wear and tear than the traditional pierced septa. It allows the needle to glide through the valve without damaging the integrity of the septa. While CRS premium septa are already designed to avoid coring (particles in the liner), the Endura-Seals go a step further to virtually eliminate this burden. These features make the Endura-Seal septa the optimum choice for automated analysis that require long run times.

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  3. Pure Pass Well Plates and Sealing Mats

    Pure Pass Well Plates and Sealing Mats

    High-throughput, automated laboratory workflows demand the highest quality consumables to reduce instrument downtime and minimize the need for repeat analyses. CRS Pure-Pass Well Plates and Sealing Mats are designed and manufactured to stringent quality standards to minimize contaminants that can affect assay results and also for dimensional compliance with ANSI/SLAS ensure compatibility with a wide range of automated equipment. Our selection of raw materials, methods of manufacture, and commitment to testing the finished, packaged product ensures that contaminant levels in Pure-Pass products are amongst the lowest in the industry. Available in clean polypropylene, and glass coated plates.

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  4. Metal Gasket Seal Fittings Are Here!

    Metal Gasket Seal Fittings Are Here!

    CRS demands a certain level of quality in our products and our ZPure Ultra Purifiers surpass even that by bringing a new set of features to the line. The ZPure Ultra Purifiers are designed for use when extremely pure gas and leak protection is critical to the application; such as in the microelelctronics and semiconductors industry. These high-quality filters are constructed of 316 stainless steel for maximum purity with an electropolished surface finish. They contain a 0.003 μm outlet particle filter, have long lifetimes, and can reach outlet purity to the ppb levels. The ZPure Ultra Purifiers come standard with 1/4” metal gasket seal fittings for superior leak ratings.

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  5. Coating Capabilities

    Coating Capabilities

    CRS has several types of coating and surface treatments available for various materials. Coatings include a glass barrier coating, hydrophobic barrier coating, low bind coating, diamond coating, non-stick, low friction coatings, and more. These are just a few of our capabilities. Contact us regarding your application to see if we have an offering to fit your needs!

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  6. New Catalytic Filter for Hydrogen Gas

    New Catalytic Filter for Hydrogen Gas

    CRS can purify hydrogen gas down to ppb levels. The Infinity Hydrogen Gas Purifier is a self regenerating purifier that removes oxygen from hydrogen at ambient temperature. The catalytic reaction consumes the oxygen and creates water vapor. When paired with an additional moisture filter, it is the perfect solution for hydrogen generators. The catalyst can last indefinitely if not contaminated. Questions? Contact us to see if this could work in your application.

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  7. Alternatives to Glass Vials?

    Alternatives to Glass Vials?

    Glass Coated Well Plates? Sure, these glass coated well plates have been on the market for some time, but CRS has now developed our own line. We believe our Pure-Pass brand matches the quality of current offerings at a competitive price point. CRS Pure-Pass Well Plates are offered in the basic uncoated ultra-clean polypropylene plates, as well as the premium glass coated plates that provide additional barrier protections for those specific applications such as in bioanalysis or pharmaceutical sampling. The polar surface of the glass coating has been shown to substantially reduces the risk of adsorption.

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  8. Don't Get Scammed! Beware of Knock-Off Products...

    Don't Get Scammed! Beware of Knock-Off Products...

    Found yourself searching online for our products and come across a price that seems too good to be true? If it seems lower than what you would expect, you might want to do a little digging before making that purchase. It could be a knock off product of the brand you trust. We all know the saying “you get what you pay for” and it never hurts to do a little extra checking.

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  9. Ergonomic Hand Crimpers

    Ergonomic Hand Crimpers

    CRS prides itself on developing a more ergonomic work environment. We practice this through the products we manufacture for our customers as well as the way we work in our own office and warehouse! Our hand crimpers are superstars at demonstrating this. They are made of a much more ergonomic casing- it is smaller, more lightweight, and yet still touch enough to get the job done. The Glass-filled plastic body with reinforced handle conforms to the natural shape of your hand.

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  10. The AFS Non-Hazardous Option - A Game Changer!

    The AFS Non-Hazardous Option - A Game Changer!

    The AFS has long been one of our flag ship gas purifier products here at CRS. It has remarkable lifetimes that wipe out the competition, with the combined benefit of the site glass for moisture and oxygen indicators. The only potential downfall that we repeatedly run into with end users was its “hazardous” shipping status. The media used in the AFS that allows for these extremely long lifetimes is also its downfall for end users that aren’t set up for receiving these special items, or want to deal with the extra cost associated with a hazardous shipping program.

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