悬浮液原子荧光光谱法测定化探样品中的痕量汞
Determination of Trace Mercury in Geological Samples by Slurry Atomic Fluorescence Spectrometry
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摘要: 拟定了将悬浮液技术与汞蒸气原子荧光光谱法相结合测定化探样品中痕量Hg的分析方法。控制悬浮液中试样粒度在200目,试样质量浓度15g/L,用电磁搅拌和载气搅拌保证悬浮液分散稳定,水溶液标准作校正曲线,方法的检出限为6ng/gHg。对水系沉积物国家标准物质中痕量Hg进行测定,结果与标准值相符,对含Hg010μg/g的GBW07305(GSD5)测定11次,x为0105μg/g,RSD为54%。Abstract: A simple and rapid method for the determination of mercury in geochemical samples is introduced in this paper. Sample is ground to 200