Determination of 1, 1-dichloro-l-nitroethane in air of workplaces by gas chromatography.
- Author:
Jin-Ping YANG
1
;
Lu-Xin ZHANG
;
Tong LIU
;
Dai-Li LIU
;
Yu-Geng HOU
;
Hong-Tao FENG
Author Information
- Publication Type:Journal Article
- MeSH: Air Pollutants, Occupational; analysis; Chromatography, Gas; methods; Ethane; analogs & derivatives; analysis; Nitroparaffins; analysis; Workplace
- From: Chinese Journal of Industrial Hygiene and Occupational Diseases 2011;29(8):629-631
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo establish a gas chromatography method for detecting the concentration of 1,1-dichloro-1-nitroethane in air of workplaces.
METHOD1,1-dichloro-1-nitroethane in air of workplaces was collected by activated charcoal tube, absorbed using carbon disulfide and analyzed by Gas Chromatography (FID) with FFAP capillary column.
RESULTSThe linear rang of 1,1-dichloro-1-nitroethane in this method was 4.0-858.2 microg/ml, the linear regression formula was Y = 283X-1076, the correlation coefficient was 0.9999, the lowest detection concentration was 0.4 mg/m3 (3L sampling air), the relative standard deviation (RSD) was 1.8%-4.1%, the desorption efficiency was 88.5%-90.6%, the breakthrough volume was > 0.7 mg, the sampling efficiency was 100%, the samples could be kept at ambient temperature for at least 7 days.
CONCLUSIONThe indicators of this method were conformed to the requirements of "Guide for establishing occupational health standards--Determination methods of air chemicals in workplace". This method could be used to detect 1,1-dichloro-1-nitroethane in air of workplaces.
