title: [Determination of 24 elements in human hair by ICP-MS using microwave digestion].
abstract: OBJECTIVE
  To establish an inductively coupled plasma-mass spectrometry (ICP-MS) method for determination of 24 elements in human hair.
  
  
  METHODS
  The samples were digested with microwave digestion instrument. ICP-MS was applied to determine 24 elements in human hair using indium (115In) as an internal standard. The established method was applied to determine element concentration in normal group (56 samples) and heroin abuse group (10 samples).
  
  
  RESULTS
  The limits of detection ranged from 0.000 3 microg/g to 10.14 microg/g. Measured value of the standard materials were basically consistent with the standard value. The contents of magnesium, gallium and barium in hair of heroin addicts decreased after rehabilitation treatment.
  
  
  CONCLUSIONS
  The method is sensitive and accurate for determination of 24 elements in human hair.
authors.affiliation: Department of Forensic Medicine, Medical College of Soochow University, Suzhou 215123, China. Zhang.Peonia@gmail.com
authors.forename: Dan
authors.initials: D
authors.lastname: Zhang
authors.forename: Xian-Yi
authors.initials: XY
authors.lastname: Zhuo
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001464:Barium / Q000032:analysis; D002648:Child; D002675:Child, Preschool; D005260:Female; D005708:Gallium / Q000032:analysis; D006197:Hair / Q000737:chemistry*; D006556:Heroin Dependence / Q000534:rehabilitation*; D006801:Humans; D008274:Magnesium / Q000032:analysis; D008297:Male; D013058:Mass Spectrometry / Q000379:methods*; D019216:Metals, Heavy / Q000032:analysis*; D008872:Microwaves; D008875:Middle Aged; D012680:Sensitivity and Specificity; D013054:Spectrophotometry, Atomic; D014131:Trace Elements / Q000032:analysis*; D055815:Young Adult
chemical_list: D019216:Metals, Heavy; D014131:Trace Elements; D001464:Barium; D005708:Gallium; D008274:Magnesium