title: [Determination of 24 metal elements and their compounds in air of workplace by ICP-AES].
abstract: OBJECTIVE
  To establish a method for determination of the levels of 24 metal elements and their compounds in the air of workplace by inductively coupled plasma-atomic emission spectroscopy (ICP- AES).
  
  
  METHODS
  Sampling filters were digested by microwave, and diluted to 25 ml. Twenty-four elements (Mg, Ni, K, Mo, Zn, Ca, Ba, Pb, Mn, Cd, Cr, Co, Cu, Sr, Bi, Tl, Sn, Li, Sb, Zr, In, V, Y, and Be) were simultaneously measured by ICP-AES.
  
  
  RESULTS
  The detection limits for 24 elements were 0.001∼0.029 mg/L; liner correlation coefficient r values were all equal to or above 0.9994; the relative standard derivations were less than 5%; the recovery rates were 91.2%∼103.9%; the degradation rates in 7 days were less than 9.7%.
  
  
  CONCLUSIONS
  ICP-AES technique is a simple, rapid, accurate, and reliable method, which can be used to measure 24 metal elements and their compounds in the air of workplace.
authors.affiliation: Testing Center of Occupational Health , Shanghai Institute of Occupational Safety and Health, Shanghai 200031, China.
authors.forename: Xiang
authors.initials: X
authors.lastname: Wang
authors.affiliation: Testing Center of Occupational Health , Shanghai Institute of Occupational Safety and Health, Shanghai 200031, China.
authors.forename: Jianguo
authors.initials: J
authors.lastname: Qiu
authors.affiliation: Testing Center of Occupational Health , Shanghai Institute of Occupational Safety and Health, Shanghai 200031, China.
authors.forename: Zhonglin
authors.initials: Z
authors.lastname: Zhao
authors.affiliation: Testing Center of Occupational Health , Shanghai Institute of Occupational Safety and Health, Shanghai 200031, China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Guo
mesh_terms: D000388:Air / Q000032:analysis*; D008670:Metals / Q000032:analysis*; D013054:Spectrophotometry, Atomic / Q000379:methods*; D017132:Workplace
chemical_list: D008670:Metals