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  • What Type of Fitting Do I Need on my Gas Filter?

    What Type of Fitting Do I Need on my Gas Filter?

    There are many kinds of fittings on the market for gas filters, including standard compression fittings, quick connect fittings, and push to connect fittings- to name a few. We are going to take a look at the different kinds of fittings and their applications

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  • Gas Purifier Specs – Who’s Counting?

    Gas Purifier Specs – Who’s Counting?

    High-purity gas is essential for the best GC results. Many point-of-use gas purifiers are available on the market to clean lower grades of gas to carrier grade gas. The point-of-use purifiers come in all kinds of sizes, prices and (claimed) capacities

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  • Indicating Gas Filters– Protecting the Indicator during Installation

    Indicating Gas Filters– Protecting the Indicator during Installation

    Indicating purifiers are popular for obvious reasons – you like to know that your filter is really working. It is possible to get moisture indicators and oxygen indicators that turn color when exposed to the target gas at the 1 ppm level?

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  • Leak Checking Misery

    Leak Checking Misery

    I bet a lot of you in the lab spend a lot more time looking for leaks in your gas lines and in your instruments than you want to! At CRS our leak checking is mostly done to assure the quality of our gas purifiers, and we have never found a way around doing 100% helium leak checking. Minute leaks can remain during purifier manufacturing...

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  • Crimping – Is My Headspace Vial Tight Enough?

    Crimping – Is My Headspace Vial Tight Enough?

    Headspace analysis is particularly sensitive to the quality of the sealing system used to contain the sample. The high pressures and high temperatures in use require high-performance and reproducible seals. So – in the absence of a high-priced residual force tester – how do we determine the tightness of the cap?

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  • SPME-GC, Which Septa Should I Use?

    SPME-GC, Which Septa Should I Use?

    Adding a chamfer to septa significantly improves performance by guiding the needle to the same location each time, reducing coring. However, without pre-piercing there is still a high risk of contamination by the SPME needle punching a septum core into the liner, presumably on the first piercing...

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  • CRS provides a wide range of ferrules.

    CRS provides a wide range of ferrules.

    CRS provides a wide range of ferrules made from Vespel®, Vespel/Graphite, Graphite and PTFE. Ferrule sizes refer to the size of the fittings into which they fit; they arenot the diameter of the ferrule. For example, 1/16" ferrules are 1/8" diameter and fit in 1/16" fittings.

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  • What Kind of Moisture Indicator Do I Need?

    What Kind of Moisture Indicator Do I Need?

    When searching for an indicating gas purifier, you will find there are many filters containing a variety of moisture indicators on the market. It is important that you pick the right indicator for your specific application to get optimal performance.

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  • Why should I be using an Electronic Crimper?

    Why should I be using an Electronic Crimper?

    Are you still crimping your chromatography vials with a manual hand crimper? Crimping all those vials by hand takes valuable time away from your analysis! The Electronic Crimping Tool from CRS will save you the strain, stress, and time wasted with a bulky metal manual crimper.

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  • Choosing the right Septa

    Choosing the right Septa

    CRS offers several lines of quality septa products. So how do you know which one is right for your application? We are here to help! Various applications may cause different wear and tear on you septa! Whether your problem is bleeding, coring, or sticking septa, we have a product that fits your chromatography needs!

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