title: [Graphite furnace atomic absorption spectrometry for determination of thallium in blood].
abstract: OBJECTIVE
  Colloidal palladium was used as chemical modifier in the determination of blood thallium by graphite furnace atomic absorption spectrometry.
  
  
  METHODS
  Blood samples were precipitated with 5% (V/V)nitric acid, and then determined by GFAAS with colloidal palladium used as a chemical modifier. 0.2% (W/V)sodium chloride was added in the standard series to improve the matrix matching between standard solution and sample.
  
  
  RESULTS
  The detection limit was 0.2 μg/L. The correlation coefficient was 0.9991. The recoveries were between 93.9% to 101.5%.The relative standard deviations were between 1.8% to 2.7%.The certified reference material of whole blood thallium was determined and the result was within the reference range Conclusion: The method is accurate, simple and sensitive, and it can meet the needs of detection thallium in blood entirely.
authors: Chengdu Centre for Disease Control and Prevention, Chengdu 610041, China.
authors: Q L
authors: QL
authors: Zhang
authors: G
authors: G
authors: Gao
mesh_terms: D006108:Graphite; D006801:Humans; D057230:Limit of Detection; D017942:Nitric Acid; D013054:Spectrophotometry, Atomic; D013793:Thallium / Q000097:blood*
chemical_list: D017942:Nitric Acid; D006108:Graphite; D013793:Thallium