摘要
Abstract
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Key words
silver-lead-bismuth alloy ingots/inductively coupled plasma atomic emission spectroscopy/impurity elements
