Simultaneous detection of 45 kinds of common organic compounds in workplace air by gas chromatography
10.11763/j.issn.2095-2619.2018.03.020
- Author:
Weifeng RONG
1
;
Weijie LING
;
Jiawen HU
1
;
Jiaheng HE
1
;
Ruibo MENG
1
;
Jingjing QIU
1
;
Xiaolin RUAN
1
Author Information
1. Guangdong Province Hospital for Occupational Disease Prevention and Treatment,Guangdong Province Key Laboratory of Occupational Disease Prevention and Treatment Guangzhou,Guangdong 510300,China
- Publication Type:Journal Article
- Keywords:
Workplace;
Air;
Benzene;
1,2-Dichloroeyhane;
n-Hexane;
Trichloroethylene;
Solvent desorption;
Gas chromatography
- From:
China Occupational Medicine
2018;45(03):363-368
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE: To explore the feasibility of simultaneous detection of 45 kinds of common organic compounds in workplace air by solvent desorption-gas chromatography method.METHODS: A total of 45 kinds of common organic compounds such as benzene,1,2-dichloroeyhane,n-hexane and trichloroethylene in workplace air were collected with activated carbon tube and desorbed with carbon disulfide,separated by capillary chromatographic column,and detected with flame ionization detector.RESULTS: There was good linear relationship in the selected range.The correlation coefficients was 0.999 92-0.999 99.The detection limit was 0.03-0.30 mg/L and the minimum detectable concentration range was 0.01-0.20 mg/m~3( sample volume was 3.00 L).The average desorption efficiencies was 75.4%-105.7%.The within-run and between-run relative standard deviations were 0.4%-6.7% and 1.8%-7.9%,respectively.The sampling efficiency was 91.9%-100.0%.CONCLUSION: The method is simple,high sensitivity and good precision,which can be used for simultaneous detection of 45 kinds of common coexisting organic compounds in workplace air.
