ICP-AES法测定含银铅铋合金锭中7种杂质元素  

Determination of 7 Impurity Elements in Silver-lead-bismuth Alloy Ingots by ICP-AES

作　　者：任利华 白灵 郭亚梅 田卫 REN Li-hua;BAI Ling;GUO Ya-mei;TIAN Wei(Testing Center of Jinchuan Group Nickel Cobalt Co.,Ltd.)

机构地区：[1]金川集团镍钴有限公司检测中心

出　　处：《中国标准化》2024年第19期296-299,共4页China Standardization

摘　　要：待测样品加入(1+1)硝酸溶解完全后,通过选择合适的称样量和待测试液稀释比消除铅铋的基体干扰。通过试验选择了分析谱线及其他仪器分析条件,在选定的仪器条件下,建立了电感耦合等离子体原子发射光谱法(ICP-AES)测定试液中镍、铜、铁、钴、锌、锑、硒7种杂质元素的分析方法。各元素工作曲线相关系数均大于0.999,同时对各元素进行了方法检出限、样品的精密度和加标回收试验,各元素的相对标准偏差为0.41%~8.57%,回收率为98.0%~106.9%,该方法简便、快速,可以满足含银铅铋合金锭中各杂质元素的测定要求。After the test sample is completely dissolved in(1+1)nitric acid,the matrix interference of lead and bismuth is eliminated by selecting an appropriate sample size and dilution ratio of the test solution.Through experiments,analytical spectral lines and other instrument analysis conditions were selected.Under the selected instrument conditions,an analytical method for the determination of seven impurity elements in the test solution,namely nickel,copper,iron,cobalt,zinc,antimony,and selenium,was established using inductively coupled plasma atomic emission spectroscopy(ICP-AES).The correlation coefficients of the working curves of each element are all greater than 0.999.At the same time,method detection limits,sample precision,and spiked recovery tests were conducted on each element.The relative standard deviation of each element was between 0.41%and 8.57%,and the recovery rate was between 98.0%and 106.9%.This method is simple and fast,and can meet the requirements for the determination of various impurity elements in silver-lead-bismuth alloy ingots.

关 键 词：含银铅铋合金锭 电感耦合等离子体原子发射光谱法 杂质元素 

分 类 号：O657.31[理学—分析化学] TF801.3[理学—化学]