Gas chromatograph problem caused by impure gas carrier
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The presence of oxygen in the gas chromatograph carrier gas causes oxidation of the stationary phase,2ml GC headspace vials damaging the column, and changing the retention of the sample.
The presence of water in the carrier gas causes hydrolysis of some of the stationary phase or silanization support, and even damages the gas chromatograph column. The presence of organic compounds or other impurities in the gas creates baseline noise and tailing. The particulate impurities entrained in the gas may cause the gas chromatograph's pneumatic control system to malfunction.2ml GC headspace vials
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