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- W2374730146 abstract "A method for the determination of antimony in geochemical samples by hydride generation-atomic flu- orescence spectrometry after separation and enrichment with mercapto-dextrangel was developed.By using micro- wave assisted digestion procedure with hydrofluoric acid,hydrochloric acid and nitric acid to dissolved sample, The decrease in the time of preparing sample was achived and loss of volatile components could be avoided.The sample solution was allowed to pass through adsorbing column with mercapto-dextrangel at pH 2,then antimony adsorbed on the column was eluted with 6.0 mol/L hydrochloric acid.Working conditions of atomic fluorescence spectrometer,conditions for hydride generation of antimory and microwave digestion were optimized.Meanwhile allowable amounts of interfering element was studied in the determination of antimony.The liner range of the method is 0.001—0.20 mg/L for antimony.The detection limit of the method was 0.25μg/L.The method has been applied to the determination of antimony in national geochemical certified reference materials and the results obtained are in good agreement with certified values,giving the RSD of 2.9%—5.1% (n=6)and the recovery of 99.2%—104.5%." @default.
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- W2374730146 date "2007-01-01" @default.
- W2374730146 modified "2023-09-23" @default.
- W2374730146 title "Determination of antimony in geochemical samples by hydride generation-atomic fluorescence spectrometry after separation and enrichment with mercapto-dextrangel" @default.
- W2374730146 hasPublicationYear "2007" @default.
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