地质化探样品中痕量银、锡的光谱定量测定

The spectrum quantitativemensuration of mark silver and tin in the geological chemically searching samples

本文对化探样品中痕量银、锡的光谱定量测定作了改进,采用浅孔电极,按压装样次数及用力程度都严格一致,以饱和氯化钾和饱和硝酸钾混合溶液作缓冲剂,分析线旁背景作内标,定量测定痕量银、锡,降低了待测元素的检出限,提高了待测元素的准确度和精密度。

This article is about how to improve the light spectrum quantifying test of tracing silver and tin in chemical samples. By adopting electrode with shallow hole, the times of pressing and wrapping and the extent of exerting are strictly kept thesame, using the mixed solution of saturated muriate and nitrate as the buffering agent, the background beside the analyzing line as the inner mark, the tracing silver and tin can be quantifying tested. This kind of method can dedrease the detection limit of the elements to be measured and increase the accuracy and precision of these elements.