Determination of Traces of Ga,In，Tl in Geological Samples by Flameless AAS Using Matrix Modifier
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The sample solution in 5.5 N-HBr medium was extracted by n-butyl acetate, using vanadium in 2N-HN03 medium as matrix modifier Ga, In and Tl could be measured less than O.OX ppm. The absolute sensitivity obtained for Ga, In and T1 were 5 .10-12, 9·10-12 and 9·10-12 respectively, The RSD of samples containing O.1µg/ml of Ga, 0.02 µg/ml of In and TI are 1.33% , 1.52 % and 1.4 7% respectively (n=11).
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秦忠骏,吴增淑,杨胜初,等, 1985. 用钒作为基体改进剂对矿石中痕量镓、铟、铊的无火焰原子吸收测定[J]. 岩石矿物学杂志, 4(2):160~163. , 1985. Determination of Traces of Ga, In，Tl in Geological Samples by Flameless AAS Using Matrix Modifier[J]. Acta Petrologica et Mineralogica, 4(2): 160~163.
