The headspace sampling device is a sample pretreatment device for gas chromatography analysis. Compared with other sample pretreatment methods such as solvent extraction and thermal desorption, it is simpler, more practical, more efficient, and has good reproducibility of chromatographic analysis results. It is one of the preferred methods for trace analysis in gas chromatography and is widely used in:
(1) Petrochemical industry: analysis of volatile organic compounds in polymer monomer coatings, etc;
⑵ Environmental Science: Analysis of volatile halogenated hydrocarbons in drinking water and organic toxic volatile compounds in industrial wastewater;
⑶ Hygiene and epidemic prevention: analysis of disinfection residues in medical supplies;
⑷ Food industry: quality control of colored wine, vinegar, and soy sauce; Residual amounts of acetaldehyde and other substances in packaging materials; Analysis of residual 6 # solvent in extracted oil, etc;
(5) Flavor essence: flavor analysis in beer and tea;
(6) Quality inspection of drugs: analysis of organic residual solvents in drugs;
Forensic chemistry: determination of ethanol, ketones, and aldehydes in blood and urine;
Other: such as the determination of volatile organic compounds in soil.