title: [Determination of 2, 4-dichlorophenoxyacetic acid in air of workplace by high-performance liquid chromatography].
abstract: OBJECTIVE
  To develop a method for determination of 2, 4-dichlorophenoxyacetic acid (2, 4-D) in the air of workplace by high-performance liquid chromatography.
  
  
  METHODS
  2, 4-D was collected by ultrafine glass filters, desorbed by methanol, separated by a C18 column, and detected by a UV detector. Identification and quantification of 2, 4-D were performed by retention time and peak areas, respectively.
  
  
  RESULTS
  The linear range of the test was 2∼200 µg/ml; the elution efficiency was 94.6%- 95.9%; the limit of detection (S/N = 3) was 0.034 µg/ml (injection volume of 20 µl eluant); the lower limit of quantification (S/N = 10) was 0.11 µg/ml; the minimum detectable concentration was 0.011 mg/m(3); the minimum quantifiable concentration was 0.037 mg/m(3) (with sampled air volume of 45 L).
  
  
  CONCLUSIONS
  This method is convenient and simple in sample collection and preparation, and satisfies all methodological requirements. Therefore, this method is useful for the determination of 2, 4-D in the air of workplace.
authors.affiliation: National Institute of Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing 100050, China.
authors.forename: Yanan
authors.initials: Y
authors.lastname: Wen
authors.forename: Zhaohui
authors.initials: Z
authors.lastname: Fu
authors.forename: Jianning
authors.initials: J
authors.lastname: Xu
authors.forename: Shichuan
authors.initials: S
authors.lastname: Tang
authors.forename: Quankai
authors.initials: Q
authors.lastname: Wang
authors.forename: Huanhuan
authors.initials: H
authors.lastname: Li
authors.forename: Guangyun
authors.initials: G
authors.lastname: Xie
authors.forename: Yuling
authors.initials: Y
authors.lastname: Zhu
authors.forename: Yiting
authors.initials: Y
authors.lastname: Gu
authors.affiliation: E-mail: mapletree66 @sina.cn.
authors.forename: Feng
authors.initials: F
authors.lastname: Tan
mesh_terms: D015084:2,4-Dichlorophenoxyacetic Acid / Q000032:analysis*; D000388:Air / Q000032:analysis*; D000395:Air Pollutants, Occupational / Q000032:analysis*; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D017132:Workplace
chemical_list: D000395:Air Pollutants, Occupational; D015084:2,4-Dichlorophenoxyacetic Acid