title: [Method for the determination of trace Li in serum of cancer patients by tungstate-coated graphite furnace atomic absorption spectrometry].
abstract: Using a tungstate coated graphite tube. The sensitivity of Li was significantly increased and trace Li in serum samples was determined by Zeeman graphite AAS with (NH4)2SO4 as a matrix modifier. The effects of different metal ions and biological matrix were eliminated. The characteristic concentration is 5.53 x 10(-3) microg x mL(-/1)%. The recovery is greater than 93.72%. The relative standard deviation is less than 8.93%.
authors.affiliation: Department of Orthopaedics, First Affiliated Hospital, Anhui Medical University, 230022 Hefei.
authors.forename: J
authors.initials: J
authors.lastname: Zhou
authors.forename: X
authors.initials: X
authors.lastname: Sun
mesh_terms: D006801:Humans; D008094:Lithium / Q000097:blood*; D009369:Neoplasms / Q000737:chemistry*; D013054:Spectrophotometry, Atomic / Q000295:instrumentation / Q000379:methods*
chemical_list: D008094:Lithium