Requirements for fixatives in gas chromatograph columns

Time:2018/10/16 Pageviews:4 Share:

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Fixative fluids are a key component of gas chromatograph columns and are available in a wide variety of applications. The main advantage is that under normal conditions, HPLC vials the distribution isotherms of the sample components in the gas-liquid two phases are mostly linear, so it is easier to obtain symmetric peaks.

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There are several requirements for the GC chromatographic column fixative:

1. It is liquid under operating conditions;

2. Low vapor pressure and good thermal stability;

3. It is chemically inert and cannot undergo any irreversible chemical reaction with the sample material, carrier and gas chromatograph carrier gas to be analyzed;

4. It has good selectivity and good separation ability for sample components with the same or similar boiling point. HPLC vials

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