Determination of epichlorohydrin in workplace air by gas chromatograph-electron capture detector / 中华劳动卫生职业病杂志
Chinese Journal of Industrial Hygiene and Occupational Diseases
;
(12): 307-309, 2015.
Article
in Chinese
| WPRIM
| ID: wpr-326000
ABSTRACT
<p><b>OBJECTIVE</b>To develop a method for determining epichlorohydrin in the workplace air by gas chromatograph-electron capture detector (GC-ECD).</p><p><b>METHODS</b>Epichlorohydrin in the workplace air was collected by activated charcoal tubes, desorbed using acetone, and analyzed by GC-ECD.</p><p><b>RESULTS</b>A good linearity was obtained in the range of 1.0-50 µg/mL (r=0.999 7). The detection limit was 0.012 µg/ml, while the recovery rate was 88.1% and relative standard deviation ranged from 1.11% to 3.57%. The samples could be stored for seven days at room temperature.</p><p><b>CONCLUSION</b>This method effectively eliminates the interferences of alkanes on determination of epichlorohydrin and improves the sensitivity by 1 to 2 orders of magnitude, which can solve the problem of detection limit above standard in GBZ/T 160.58-2004.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Charcoal
/
Chromatography, Gas
/
Workplace
/
Air Pollutants, Occupational
/
Epichlorohydrin
Language:
Chinese
Journal:
Chinese Journal of Industrial Hygiene and Occupational Diseases
Year:
2015
Type:
Article
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