title: [Simultaneous determination of 13 polycyclic aromatic hydrocarbons in indoor air by HPLC].
abstract: OBJECTIVE
  To establish a method for the simultaneous determination of 13 polycyclic aromatic hydrocarbons (PAHs) in indoor air by high performance liquid chromatography (HPLC) using methanol/water as mobile phase.
  
  
  METHODS
  The analytical procedure involves collecting indoor airborne PAHs on quartz fiber filter, ultrasonic extraction with methanol, transferring PAHs to methanol after blowing off the solvent with nitrogen gas followed with separation and quantitation with reverse-phase HPLC using gradient elution and fluorescence programmed multiple wavelength shift detection. The separation and determination parameters were optimized. PAHs were spiked to evaluate the accuracy of the method.
  
  
  RESULTS
  The detection limits of 13 PAHs varied from 0.11 to 11.7 pg. The recoveries ranged between 80.7% and 112.1%. The within-day (n = 5) and between-day (n = 6) relative standard deviations were 0.5%-5.5% and 2.4%-9.1% respectively.
  
  
  CONCLUSIONS
  This method is rapid, economical, accurate, and suitable for determining the trace PAHs in indoor air.
authors.affiliation: Department of Sanitary Technology, West China School of Public Health, Sichuan University, Chengdu 610041, China.
authors.forename: Deyun
authors.initials: D
authors.lastname: Zhang
authors.forename: Chengjun
authors.initials: C
authors.lastname: Sun
authors.forename: Tao
authors.initials: T
authors.lastname: Wang
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D016902:Air Pollution, Indoor / Q000032:analysis*; D002851:Chromatography, High Pressure Liquid; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis*
chemical_list: D000393:Air Pollutants; D011084:Polycyclic Aromatic Hydrocarbons