Simultaneous determination of 2-methoxyethyl acetate and 2-ethoxyethyl acetate in workplace air by solvent desorption-gas chromatography
10.11763/j.issn.2095-2619.2017.02.017
- Author:
Weijie LING
1
;
Weifeng RONG
;
Jiawen HU
;
Ruibo MENG
;
Jiaheng HE
;
Jingjing QIU
;
Yimin LIU
1
Author Information
1. Guangzhou Prevention and Treatment Center for Occupational Diseases Guangzhou,Guangdong 510620,China
- Publication Type:Journal Article
- Keywords:
Workplace;
Air;
2-Methoxyethyl acetate;
2-Ethoxyethyl acetate;
Solvent desorption;
Gas chromatography
- From:
China Occupational Medicine
2017;44(02):211-214
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE: To establish a solvent desorption-gas chromatography method for simultaneous determination of 2-methoxyethyl acetate(2-MEA) and 2-ethoxyethyl acetate(2-EEA) in the workplace air. METHODS: 2-MEA and 2-EEA in workplace air were captured by charcoal tubes and desorbed with solution of 5. 00%(V/V) methanol-methylene chloride,separated through capillary chromatographic column,and then analyzed by gas chromatography-flameionization detector. RESULTS: The linear ranges of 2-MEA and 2-EEA were 1. 50-2 403. 84 and 1. 79-2 871. 20 mg/L,respectively.The correlation coefficient were 0. 999 8. The minimum quantification concentrations were 0. 20 and 0. 09 mg/m~3,respectively(3. 00 L sample). The average desorption efficiencies were 98. 08%-99. 67% and 94. 34%-99. 79%,respectively. The within-run relative standard deviations(RSD) were 1. 77%-3. 51% and 1. 72%-3. 01%,respectively.The between-run RSD were 2. 27%-4. 44% and 2. 31%-4. 19%,respectively. The samples could be stored at room temperature for at least 14 days. CONCLUSION: This method could be used for simultaneous sampling and quantitative detection of 2-MEA and 2-EEA in workplace air.
