Determination of dimethyl sulfate in the air of workplace by GC-MS
10.3760/cma.j.issn.1001-9391.2017.02.020
- VernacularTitle: 工作场所空气中硫酸二甲酯测定的气质联用仪法
- Author:
Changmei ZHOU
1
;
Baoli ZHU
;
Xiaojuan LI
;
Jian WU
;
Yunming LIU
Author Information
1. Provincial Center for Disease Control and Prevention, Nanjing 210009, China
- Publication Type:Journal Article
- Keywords:
Dimethyl sulfate;
Workplace;
Air;
GC-MS
- From:
Chinese Journal of Industrial Hygiene and Occupational Diseases
2017;35(2):152-153
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To establish a method to detect the concentrations of dimethyl sulfate in the air of workplace by GC-MS.
Methods:DMS in the air of workplace adsorpted by Silicone tube, then desorped by acetone, add 1.0 ml of acetone, shake 1 min, placed after 30 min, the desorption solution qualitative and quantitative determination by gas chromatography-mass.
Results:The calibration curves were liner in the range of 0.1-200.0 μg/ml. The within-run and between-run precisions were 2.6%-4.7% and 4.0%-9.0% respectively. The method detection limit is 0.1 μg/ml, the minimum detectable concentration is 0.02 mg/m3 (in terms of sampling 4.5 L) . Add 1 ml of desorption liquid, place 30 min, the average desorption efficiency of more than 90%.
Conclusion:This method has simple pretreatment, short analysis period, and optimized linear rage and limit of detection, and is suitable for the determination of DMS in workplace air.
