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。
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)pentacyllisateⅡformed 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.
作者
邬晓蒙
Wu Xiaomeng(Qinghai Geological Mineral Testing and Application Center,Xining 810008,China)
出处
《山东化工》
CAS
2018年第12期79-79,86,共2页
Shandong Chemical Industry
