Study on Analysis Method of Difluoromethanesulphonyl Chloride by Gas Chromatography
A gas chromatography method was established to detection the content of difluoromethanesulphonyl chloride.The method selected a DB-WAX gas chromatography column with chlorobenzene as the internal standard for qualitative and quantitative analysis.The results showed that this method had a good linear relation(r=0.999 82)in a concentra-tion range from 0.615 g/L to 15.36 g/L with an average RSD of 0.39％and a recovery rate range from 96.73％to 104.37％.This method has been proved to be simple,rapid with good accuracy and reliability,which could be applica-ble in detecting of difluoromethanesulphonyl chloride in the samples taking from the preparation reaction.
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