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GC, MDGC

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    How using Hydrogen Carrier Gas can Al...

    Owing to the worldwide helium shortage, many labs are facing difficulties in maintaining their supply, of one the most commonly used carrier gases for gas chromatography (GC) and as a consequence are facing rapid price increases. Many chromatography labs are therefore looking for altern...

    GC, MDGC

    February 2014

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    Leaks in a GC System

    We have had enquiries from our readers about leaks in their GC instrumentation.  This article will look at some of the ways of identifying these leaks in a gas chromatography system and also highlight some of the issues that can be caused by having a leaky system. Leaks of the carri...

    GC, MDGC

    February 2014

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    Improved GC Columns for the Petroleu...

    Petroleum analysis makes extensive use of specialised columns for gas chromatography, with continuous expectations from the industry for better columns that improve analytical performance and chromatographic efficiency. In this article we discuss two new developments in GC column techno...

    GC, MDGC

    February 2014

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    Why is my Method Not Robust?

    With the first edition of Chromatography Today Helpdesk, it was thought one of the most common issues, namely of non-robust methods, should be addressed. Why do assays keep falling over and what can be done to make them stable is a question that keeps many scientists and lab managers aw...

    GC, MDGC

    June 2013

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    The Need for Speed Applying Triple Qu...

    Gas chromatography-mass spectrometry (GCMS) is a technique widely used in this sector, however with analysis runs that may take several hours to complete, and with repeat testing often needed, the market is inevitably calling for increased speed from both preparation methods and instrum...

    GC, MDGC

    March 2013

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    Headspace Gas Chromatography as a Gr...

    Headspace-Gas Chromatography (HS-GC) has been evaluated as a green alternative for the elimination, or at least the large reduction, of solvents in analytical determinations. The direct use of HS-GC and the pre-concentration of analytes in the HS vial offer fast, safe, sensitive and sel...

    GC, MDGC

    December 2012


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