Detecting ethylene glycol monopropyl ether in workplace air by solvent desorption-gas chromatography
10.11763/j.issn.2095-2619.2018.01.019
- Author:
Weijie LING
1
;
Weifeng RONG
;
Jiawen HU
;
Ruibo MENG
;
Jiaheng HE
;
Jingjing QIU
Author Information
1. Guangzhou Prevention and Treatment Center for Occupational Diseases Guangzhou,Guangdong 510620,China
- Publication Type:Journal Article
- Keywords:
Workplace;
Air;
Ethylene glycol monopropyl ether;
Charcoal tube;
Solvent desorption;
Gas chromatography
- From:
China Occupational Medicine
2018;45(01):91-94
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE: To develop a solvent desorption-gas chromatography method for detecting ethylene glycol monopropyl ether( EGME) in workplace air. METHODS: EGME in workplace air was captured by charcoal tubes and desorbed by methanol-methylene chloride(5∶ 95,V/V),separated by capillary chromatographic column,and detected by flame ionization detector. RESULTS: The good linear range of EGME was 1. 37-1 913. 80 mg/L,and the correlation coefficient was 0. 999 90. The detection limit was 0. 06 mg/L. The minimum detectable concentration was 0. 02 mg/m3.The average desorption efficiency was 97. 81%-104. 70%. The within-run relative standard deviation( RSD) was 1. 94%-2. 99%,and the between-run RSD was 3. 24%-4. 53%. The samples could be stored at room temperature for at least 14 days. CONCLUSION: This method could be used for detection of EGME in workplace air.
