摘要
建立了火焰原子吸收光谱法测定锡阳极泥中铜元素的分析方法。对锡阳极泥样品,采用盐酸、硝酸、高氯酸分解,氢溴酸挥发除去锡和锑的溶样方式,火焰原子吸收光谱仪测定铜,测定范围为1%~5%,并考察了仪器条件、不同酸浓度、干扰元素对铜含量测定的影响。实验结果表明铜的检出限为0.013μg/mL,加标回收率为95.5%~104%,相对标准偏差为0.81%~2.1%,方法准确度高、精密度好,能够很好地满足锡阳极泥中铜元素的测定。
A method for determination of copper elements in tin anode slime by flame atomic absorption spectrometry was established in this article.Sample was dissolved by hydrochloric acid,nitric acid,perchloric acid and hydrobromic acid which can remove tin and antimony by volatilizing,then copper content from 1%—5%was determined by flame atomic absorption spectrometry.Also,the effects of instrumental condition,acidity and impurities on the determination were investigated.The results indicate that the detection limit of copper was 0.013μg/mL in the method,with the recoveries of 95.5%—104%and the relative standard deviations of 0.81%—2.1%.The method is of high accuracy and good precision so that it can be used in the determination of copper elements in tin anode slime well.
作者
方迪
张艳峰
FANG Di;ZHANG Yanfeng(BGRIMM MTC Technology Co.,Ltd.,Beijing 102628,China;Shandong Humon Smelting Co.,Ltd.,Yantai,Shandong 264109,China)
出处
《中国无机分析化学》
CAS
2020年第5期40-43,共4页
Chinese Journal of Inorganic Analytical Chemistry
基金
北京矿冶科技集团青年科技创新基金(QC-10)。
关键词
锡阳极泥
铜
火焰原子吸收光谱法
锡
锑
tin anode slime
copper
flame atomic absorption spectrometry
tin
antimony
