火焰原子吸收法测定粗锡中的铜含量  

Determination of Copper in Crude Tin by Flame Atomic Absorption Spectrometry

作　　者：杨春林 马丽 冯振华 YANG Chunlin;MA Li;FENG Zhenhua(BGRIMM MTC Technology Technical Co.,Ltd.,Beijing 102628,China;Beijing Key Lab of Mineral Resource Evaluation&Analysis,Beijing 102628,China)

机构地区：[1]北矿检测技术有限公司,北京102628 [2]金属矿产资源评价与分析检测北京市重点实验室,北京102628

出　　处：《中国无机分析化学》2020年第6期41-44,共4页Chinese Journal of Inorganic Analytical Chemistry

基　　金：国家重点研发计划—国家重大科学仪器设备开发重点专项(2016YFF02500)。

摘　　要：讨论了用火焰原子吸收光谱法测定粗锡中铜含量的方法。试料用盐酸、硝酸、酒石酸溶解。在盐酸(5%)介质中,使用空气-乙炔火焰,波长选用324.7nm,用原子吸收光谱法测量铜的吸光度。以工作曲线法计算铜含量。研究了仪器的最佳测定条件,元素测定的质量数以及酸度的影响。方法测定结果准确、可靠,样品加标回收率在97.2%~102%。能满足日常检测应用。The test sample is dissolved with hydrochloric acid,nitric acid and tartaric acid.In a 5%(v/v)hydrochloric acid medium,the absorbance of copper was measured with air acetylene flame at 324.7 nm.Calculation of copper content by working curve method.The optimum measuring conditions of the instrument,the mass number of elements determined and the influence of acidity were studied.The recoveries were 97.2%~102%.It can meet the daily detection application.

关 键 词：粗锡 原子吸收光谱法 铜 

分 类 号：O657.31[理学—分析化学] TH744.12[理学—化学]