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  • GC Columns

    Outline Welch Materials have concentrated on GC R&D and production for many years, and each column would be tested strictly before selling with attached column report. Welch columns are characterized...
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  • Oxidative damage in GC column

    Oxygen is a hazardous substance for most of the capillary columns. At room temperature, the column will not be damaged. But as the column temperature increases, the column will be...
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