title: [Determination of o-chlorostyrene in the air of workplace by gas chromatography].
abstract: OBJECTIVE
  To establish a rapid gas chromatographic method for determination of o-chlorostyrene in the air of workplace.
  
  
  METHODS
  The air samples were collected by syringes, injected directly to the GC system, and then separated by a FFAP capillary column (30 m × 0.53 mm × 0.25 µm), finally determined by a Flame Ionization Detector.
  
  
  RESULTS
  A good linear correlation was showed within a range of 0 ∼ 1200 µg/L, with regression formula Y = 14 030 + 7 207X (r = 0.9999). The air sample could be stably stored in the syringe for 5 hrs. The relative standard deviation (RSD) of repeated injection of o-chlorostyrene standard solutions at three different concentration by six times was 1.28% ∼ 1.97%. The minimum detectable concentration was calculated to be 5.2 mg/m(3). Other coexistent violative organic compounds such as styrene, p-chlorostyrene, and m-chlorostyrene didn't interfere with the determination under the experimental conditions of this method.
  
  
  CONCLUSIONS
  This method meets the requirement of "Guide for establishing occupational health standards-Part 4: Determination methods of air chemicals in workplace". It is applicable for determination of o-chlorostyrene in the air of workplace.
authors.affiliation: Shenzhen center for disease control and prevention Shenzhen 518055, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Chen
authors.forename: Gui-Hua
authors.initials: GH
authors.lastname: Liu
authors.forename: Kai
authors.initials: K
authors.lastname: Lin
mesh_terms: D000395:Air Pollutants, Occupational / Q000032:analysis*; D002849:Chromatography, Gas / Q000379:methods*; D013343:Styrenes / Q000032:analysis*; D017132:Workplace
chemical_list: D000395:Air Pollutants, Occupational; D013343:Styrenes; C422704:4-chlorostyrene