Determination of Cyclohexene in workplace air by Solvent desorption gas chromatography
10.3760/cma.j.cn121094-20181120-00455
- VernacularTitle:工作场所空气中环己烯的溶剂解吸-气相色谱法
- Author:
Mengmeng LIU
1
;
Jian ZHANG
;
Waochao ZHANG
;
Shulan ZHAO
;
Qiang ZENG
Author Information
1. 300011 天津市疾病预防控制中心职业病预防控制所
- Keywords:
Chromatography, Gas;
Workplace;
Cyclohexene
- From:
Chinese Journal of Industrial Hygiene and Occupational Diseases
2020;38(5):381-384
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To establish a solvent desorption gas chromatography method for determination of cyclohexene in workplace air.Methods:Cyclohexene in the air of workplace was collected with carbon tube and desorbed by carbon disulfide. The target toxicant was separated with the GC column and analyzed with FID detector, identified by retention time, and quantified by peak area.Results:The linear range of cyclohexene in the air of workplace was 0.77~4 050.00 μg/ml, with a correlation coefficient of 0.9999. The limit of detection was 0.23 μg/ml. The lower limit of quantification was 0.77 μg/ml. The minimum detectable concentration was 0.15 mg/m 3 under1.5 L sampling volume and 1.0 ml extraction solution volume. The within-run precision of different cyclohexene concentrations was 0.62%~1.9% and the between-run precisions was 1.5%~3.5%; The average extraction efficiency was 96.4%; Penetration capacity (100 mg of carbon tube) was 29.4 mg; The average collection efficiency was 100%; The samples could be stored for 7 days at room temperature. When placed in 4 ℃ refrigerator, the samples could be stored for 14 days. The potential coexistence of cyclohexane, hexane, benzene, toluene and ethylbenzene with cyclohexene in the air did not interfere with the results of determination. Conclusion:This method has high sensitivity, precision, accuracy and lower limit of detection and it is applicable for determination of cyclohexene in workplace air.
