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”.

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.

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.

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!

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.

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.

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.

Chromatography Research Supplies (CRS) has developed a moisture filter specifically targeted to SFC end-users in petrochemical analysis using carbon dioxide as their mobile phase. In this specific application, the adsorption properties of the typical 5A or 13X molecular sieve media can cause rapid heating of the purifier cylinders from CO2 adsorption as well as the intended H2O molecules. With the CRS 3A molecular sieve filter, the smaller pore size allows for the removal of moisture while excluding almost all larger molecules, including the CO2 being used as the carrier.

We often get questions asking for lifetime estimates on filters. While we make our specifications conservative to try and get 1 year of life out of each filter from an "average" application; the truth is, this estimate can vary drastically based on the conditions of your application. To get a true estimate we have to collect some data pieces from you first! With our new form, you can easily gather the information needed and input it into the form. You are guaranteed to hear back from one of our team members by the next business day. Check it out...

You may want to consider switching to all steel!