ICP-AES法测定铅锭中铁、铜、锑、铋、砷元素的含量  

Determination of Impurity Elements in Lead Alloysby Inductively Coupled Plasma Atomic Emission Spectrometry

作　　者：张彦翠[1] 方彦霞 王源瑞 展之旺 郑省政[1] ZHANG Yan-cui;FANG Yan-xia;WANG Yuan-rui;ZHAN Zhi-wang;ZHENG Sheng-zheng(Northwest Research Institute of Mining&Metallurgy Physical Testing and Chemical Analysis Center,Baiyin 730900,China)

机构地区：[1]西北矿冶研究院理化检测中心,甘肃白银730900

出　　处：《甘肃冶金》2020年第6期109-111,114,共4页Gansu Metallurgy

摘　　要：待测样品经过25%的优级纯硝酸溶解完全后,冷却,加入硫酸与铅反应形成沉淀从而去除铅的基体干扰。在选定的仪器工作条件下,建立ICP-AES测定样品中杂质元素的方法。各元素的校准曲线相关系数均大于0.999;同时对各元素进行了检出限和加标回收试验,相对标准偏差(n=8)为1.17%~2.46%,并与火焰原子吸收光谱法进行了仪器方法比对。该方法简便、快速,测定结果可靠,避免了铅基体的干扰,可以满足铅锭及铅合金多元素分析的要求。The sample was dissolved in 25%G.R nitric acid and chill-down,thenadded sulfuric acid to react with lead to form precipitation and removed the matrix interference of lead.Under the selectedworking conditions of instrument,the method about determination of impurity elements in lead alloys were established by ICP-AES.The correlation coefficients of elements were all higher than 0.999;at the same time,the detection limits and values of recoveries about elements were carried out,therelative standard deviations(n=8)were between 1.17%and 2.46%,compared to the flame atomic absorption spectroscopy.The results were consistent with those obtained by flame atomic absorption spectrometry(FAAS).The method is simple,fast,reliable and avoided interference of lead matrix,which can satisfied the requirement of multi-element analysis in lead and lead alloy.

关 键 词：铅锭 ICP-AES法 杂质元素 

分 类 号：O657.3[理学—分析化学]