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模糊聚类-偏最小二乘光度法同时测定锇和钌
Simultaneous Determination of Osmium and Ruthenium With Fuzzy Cluster-Partial Least Squares-Spectrophotometry
【摘要】 将模糊聚类分析与偏最小二乘相结合,对锇、钌双组份重叠光谱进行解析;较好地解决了校正分析中校准模型的优化问题,提高了分析结果的准确度;研究了锇、钌-SnCl2-乳化剂OP-阿拉伯树胶(AG)-丁基罗丹明B(BRB)高灵敏多元离子缔合物显色体系。锇、钌的检出限分别为 0,632 μg/L和 0.368 μg/L,模拟地质样品分析结果的相对误差小于±10%。
【Abstract】 Partial least squares was applied to the simultaneous determination of Os and Ru in imitative geological sample with SnC12-buthyl rhodamine B(BRB)-emulsion OP(OP) color system. In this method, fuzzy cluster analysis was used to optimize the calibration model. The detection limit of Os anr Ru is 0.632 μg/L and 0.368 μg/L, respectively. Relative error of Os and Ru is < 10%.
【关键词】 模糊聚类分析;
偏最小二乘法;
锇;
钌;
分光光度法;
【Key words】 Fuzzy cluster; partial least squares; osmium; ruthenium; spectrophotometry;
【Key words】 Fuzzy cluster; partial least squares; osmium; ruthenium; spectrophotometry;
【基金】 国家自然科学基金
- 【文献出处】 分析化学 ,Chinese Journal of Analytieal Chemistry , 编辑部邮箱 ,1998年10期
- 【分类号】O657.3
- 【被引频次】9
- 【下载频次】58