摘要
目的：建立氢化物原子荧光法（HG-AFS）同时测定供水材料浸泡液中锡和锑的方法。方法：使用硫脲-抗坏血酸混合溶液作为预还原剂和掩蔽剂,研究原子荧光法同时测供水材料浸泡液中痕量锡和锑的最佳测定条件。结果：本法选择100 g/L硫脲-抗坏血酸溶液作为预还原剂和掩蔽剂,20 g/L硼氢化钾溶液作为还原剂,线性范围为0-10μg/L,相关系数≥0.9995,锡和锑的检出限分别为0.056μg/L和0.084μg/L,平均回收率分别在94.3%-105.1%和96.5%-102.6%范围内。结论：该方法简便快速、灵敏度高、准确度好,适合供水材料浸泡液中痕量锡和锑的测定。
Objective：To establish a hydride atomic fluorescence spectrometry （HG- AFS） for determination of water supply materials at the same time in the tin and antimony dip approach. Methods： Uses thiourea as a pre - mixed solution of ascorbic acid reducing agent and masking agent, researchers at the same time atomic fluorescence measurement of trace water supply materials dip tin and antimony determination of the best conditions. Results ：This choice of 100 g/L ascorbic acid solution of thiourea as a pre - reducing agent and masking agent, 20 g/L solution of potassium borohydride as reducing agent, the linear range of 0 - 10 ug/L,the correlation coefficient ≥ 0. 9995, tin and antimony detection limits were 0. 056 ug/L and 0. 084 ug/L, the average recoveries were 94% -105% and 97% - 103% range. Conclusion： The method is simple, rapid and suitable for water supply materials dip trace determination of tin and antimony.
出处
《中国卫生检验杂志》
CAS
2009年第7期1500-1501,共2页
Chinese Journal of Health Laboratory Technology
关键词
氢化物原子荧光法
供水材料浸泡液
锡
锑
Hydride generation atomic fluorescence spectrometry
Dip supply materials
Sn
Sb
