
摘要:
土壤、水系沉积物、岩矿矿物样品中铂元素经湿法分解,加入氯化亚锡后与铂形成了五(三氯化亚锡)合铂Ⅱ的络合离子,被活性炭吸附,分离富集后,采用快速曝光技术,发射光谱法测定超痕量铂元素。分析检测出限为0.3ng/g,选取铂族元素地球化学成分分析标准物质平行测定(n=12次),相对标准偏差(RSD)小于20%,满足分析质量要求。
关键词:土壤、水系沉积物、岩矿矿物;湿法分解;发射光谱法;超痕量铂元素。
Summary:
Platinum in the soil, aquifer
sediments and rock mineral samples was wet-decomposed. After the stannous
chloride was added, the complex ions of platinum (II) pentacyllisate Ⅱ formed
with platinum were adsorbed and separated by activated carbon Set, the use of
rapid exposure technology, emission spectrometry for the determination of
ultra-trace platinum. The limit of detection was 0.3 ng / g, and the
geochemical composition analysis of platinum group elements was selected for
parallel determination (n = 12) with the relative standard deviation (RSD) less
than 20%, which met the analytical quality requirements.
摘要:
土壤、水系沉积物、岩矿矿物样品中铂元素经湿法分解,加入氯化亚锡后与铂形成了五(三氯化亚锡)合铂Ⅱ的络合离子,被活性炭吸附,分离富集后,采用快速曝光技术,发射光谱法测定超痕量铂元素。分析检测出限为0.3ng/g,选取铂族元素地球化学成分分析标准物质平行测定(n=12次),相对标准偏差(RSD)小于20%,满足分析质量要求。
关键词:土壤、水系沉积物、岩矿矿物;湿法分解;发射光谱法;超痕量铂元素。
Summary:
Platinum in the soil, aquifer
sediments and rock mineral samples was wet-decomposed. After the stannous
chloride was added, the complex ions of platinum (II) pentacyllisate Ⅱ formed
with platinum were adsorbed and separated by activated carbon Set, the use of
rapid exposure technology, emission spectrometry for the determination of
ultra-trace platinum. The limit of detection was 0.3 ng / g, and the
geochemical composition analysis of platinum group elements was selected for
parallel determination (n = 12) with the relative standard deviation (RSD) less
than 20%, which met the analytical quality requirements.
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