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提出了无火焰原子吸收测定矿物中痕量钡的方法。实验研究了各种干扰,选取了最优测定条件。钡的灵敏度是0.2ng/mL/1％,0.50μg/mL浓度时变异系数为7.3％。方法可用于测定矿物中0.001—0.5％的钡。
A flameless atomic absorption method for the determination of trace amounts of barium in minerals was proposed. Various interferences were studied experimentally, and the optimal measurement conditions were selected. The sensitivity of barium was 0.2 ng / mL / 1% and the coefficient of variation was 7.3% at 0.50 μg / mL. The method can be used to determine 0.001-0.5% barium in minerals.