节点文献
电感耦合等离子体发射光谱(ICP-OES)法测定不锈钢中的硅、锰、磷、铬、镍、钼、铜
Determination of Silicon,Manganese,Phosphorus,Chromium,Nickel,Molybdenum and Copper in Stainless Steel by ICP-OES
【摘要】 用HCl-HNO3混和酸溶解不锈钢样品,用钇为内标物质,使用标准样品绘制工作曲线,用电感耦合等离子体发射光谱(ICP-OES)法测定了不锈钢中的硅、锰、磷、铬、镍、钼、铜。在选定的操作条件下,对不锈钢标准样品按实验方法进行测定,标准样品的测定值与标准值基本吻合。元素质量分数在0.01%~0.10%时,相对标准偏差(n=11)RSD<5%;质量分数大于0.10%,RSD <1%。同时测定不锈钢中的硅、锰、磷、铬、镍、钼、铜元素的含量,操作简单、快速、灵敏度高,结果令人满意。
【Abstract】 Dissolving stainless steel samples with HCl-HNO3 mixed acid,using yttrium as internal standard material,drawing working curves with standard samples,silicon,manganese,phosphorus,chromium,nickel,molybdenum and copper in stainless steel were measured by ICP-OES.Under the selected operating conditions,the stainless-steel standard sample was measured according to the experimental method.Element mass fraction within the range of 0.01%—0.10%,relative standard deviation(n=11)RSD<5%;mass fraction>0.10%,RSD<1%.The method is simple and rapid,and the precision and accuracy are all in line with the requirements.This method was used to simultaneously analyze the content of silicon,manganese,phosphorus,chromium,nickel,molybdenum and copper in stainless steel samples with satisfactory results.
【Key words】 stainless steel; inductively coupled plasma emission spectra(ICP-OES); internal standard substance;
- 【文献出处】 中国无机分析化学 ,Chinese Journal of Inorganic Analytical Chemistry , 编辑部邮箱 ,2019年02期
- 【分类号】O657.31;TG142.71
- 【被引频次】4
- 【下载频次】172