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

  1. 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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  2. 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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  3. 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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  4. 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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  5. So Many Filter Options… Which Is Best?

    So Many Filter Options… Which Is Best?

    At CRS, we have a wide range of options to purify your laboratory gases. We understand it can be overwhelming to narrow down which is the right one for your application. Never fear, we are always available for technical support and with the right information, we can help make the best recommendation for you. We typically have a set of questions to help us narrow down the options. The purity level of your source gas, and your flow and pressure ratings can drastically affect how long any given filter will last for your specific application.

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  6. 3A Moisture Trap for SFC

    3A Moisture Trap for SFC

    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.

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  7. New! Purifier Recommendation and Lifetime Estimate Inquiry Form

    New! Purifier Recommendation and Lifetime Estimate Inquiry Form

    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...

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  8. Septa Life: Overview

    Septa Life: Overview

    A nerve-wracking question GC analysts might have asked themselves at some point is, “Will my septum last through the entire weekend autosampler run?” In this blog we’ll look at some of the factors that help answer that question, but starting with, what is injection life anyway? The simple answer is that septum life is the number of injections you can get out of a septum before you notice any degradation of your analytical results. I word it this way because in modern GCs, if an inlet leak is detected, which occurs depending on the brand at, say, 3 or 4 mL/min, it will shut down the instrument, ending the run but at least keeping un-analyzed samples in their intact vials.

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  9. Those Darn Phthalates

    Those Darn Phthalates

    Phthalates provide an almost endless opportunity for fascinating annoyance in the lab...

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  10. DIY Air Testing

    DIY Air Testing

    Our stringent QC testing of every batch of our premium low-bleed septa has led us to develop some pretty unique test methods. Learn More...

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