GFAAS和ICP-MS测定化探样品中的痕量金

Gold(2016)

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Abstract
化探样品经650℃高温灼烧、王水(1+1)分解后,在铁盐作用下,用经过酸处理后的聚氨酯泡沫塑料振荡吸附样品溶液中痕量金,以硫脲溶液解脱,待样品溶液冷却后分别用石墨炉原子吸收光谱法和电感耦合等离子体质谱法进行测定.两种方法的检出限、准确度、精密度无显著差异,相对于石墨炉原子吸收光谱法,电感耦合等离子体质谱法的校准曲线线性范围宽、重现性好、测试速度快,缩短了化探样品测试周期,值得推广.
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