title: [Determination of 1, 1-dichloro-l-nitroethane in air of workplaces by gas chromatography].
abstract: OBJECTIVE
  To establish a gas chromatography method for detecting the concentration of 1,1-dichloro-1-nitroethane in air of workplaces.
  
  
  METHODS
  1,1-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.
  
  
  RESULTS
  The 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.
  
  
  CONCLUSIONS
  The 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.
authors.affiliation: Tianjin Dongli District Center for Disease Control and Prevention, Tianjin, China.
authors.forename: Jin-Ping
authors.initials: JP
authors.lastname: Yang
authors.forename: Lu-Xin
authors.initials: LX
authors.lastname: Zhang
authors.forename: Tong
authors.initials: T
authors.lastname: Liu
authors.forename: Dai-Li
authors.initials: DL
authors.lastname: Liu
authors.forename: Yu-Geng
authors.initials: YG
authors.lastname: Hou
authors.forename: Hong-Tao
authors.initials: HT
authors.lastname: Feng
mesh_terms: D000395:Air Pollutants, Occupational / Q000032:analysis*; D002849:Chromatography, Gas / Q000379:methods*; D004980:Ethane / Q000031:analogs & derivatives* / Q000032:analysis; D009595:Nitroparaffins / Q000032:analysis*; D017132:Workplace
chemical_list: D000395:Air Pollutants, Occupational; D009595:Nitroparaffins; C014705:nitroethane; D004980:Ethane