title: [Portable gas chromatography for determining airborne acrylonitrile in workplaces].
abstract: OBJECTIVE
  To establish a method for rapid determination of airborne acrylonitrile using a portable gas chromatograph.
  
  
  METHODS
  A single standard sample of acrylonitrile was prepared in a laboratory and sampled by the built-in constant flow pump of the portable gas chromatograph. The sample was then preconcentrated by the preconcentrator, thermally desorbed, separated by capillary columns, and detected by a micro argon ionization detector to determine the retention time. Retention time was then used to perform qualitative analysis. Under the set condition of gas chromatography, the external standard method was used to create a standard curve for quantitative analysis of acrylonitrile.
  
  
  RESULTS
  The linear range of acrylonitrile on the portable gas chromatograph was 0.25 to 3.00 mg/m(3). The regression equation was y = 10(-5) x-0.0275, r = 0.9977. The limit of detection was 0.005 mg/m(3), and the lower limit of quantification was 0.25 mg/m(3). The relative standard deviation was lower than 7.09%, and the degree of accuracy was 91.09-105.54%.
  
  
  CONCLUSIONS
  Portable gas chromatography is a simple, repeatable, and accurate method for rapid determination of airborne acrylonitrile.
authors.affiliation: Jiangsu Provincial Center for Disease Prevention and Control, Nanjing 210009, China.
authors.forename: Jian
authors.initials: J
authors.lastname: Liu
authors.forename: Feng
authors.initials: F
authors.lastname: Zhang
authors.forename: Bao-li
authors.initials: BL
authors.lastname: Zhu
mesh_terms: D000181:Acrylonitrile / Q000032:analysis*; D000395:Air Pollutants, Occupational / Q000032:analysis*; D002849:Chromatography, Gas / Q000295:instrumentation*; D017132:Workplace
chemical_list: D000395:Air Pollutants, Occupational; D000181:Acrylonitrile