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
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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。
Dissolving stainless steel samples with HCl-HNO_3 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.
Dissolving stainless steel samples with HCl-HNO_3 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.
引文
[1]郑国经.ICP-AES分析技术的发展及其在冶金分析中的应用[J].冶金分析(Metallurgical Analysis),2001,21(1):39-41.
[2]王黎明.分光光度法联测不锈钢中铬和锰的发展[J].机械管理开发(Mechanical Management and Development),2002,127(3):119-120.
[3]袁秉鉴.光度法快速测定不锈钢中的铬、镍、钼、钛、锰[J].化学分析计量(Chemical Analysis and Meterage),2010,19(1):55-57.
[4]沈京沙,杨桂法.还原光度法同时测定不锈钢中铬和锰[J].冶金分析(Metallurgical Analysis)2001,21(5):59-60.
[5]辛仁轩,余正东,郑建明,等.电感耦合等离子体原子发射光谱法原理及应用[M].北京:冶金工业出版社,2012:199.
[6]叶江雷,弓振斌,沈爱斯.茶叶中9种农药残留的毛细管气相色谱法测定[J].分析仪器(Analytical Instrumentation),2005(2):2023.
[7]李永库,李晓静,徐远金.固相萃取-毛细管气相色谱法测定茶叶中11种残留有机磷农药[J].理化检验-化学分册(Physical Testing and Chemical Analysis Part B:Chemical Analysis),2008,44(6):563-565.
[2]王黎明.分光光度法联测不锈钢中铬和锰的发展[J].机械管理开发(Mechanical Management and Development),2002,127(3):119-120.
[3]袁秉鉴.光度法快速测定不锈钢中的铬、镍、钼、钛、锰[J].化学分析计量(Chemical Analysis and Meterage),2010,19(1):55-57.
[4]沈京沙,杨桂法.还原光度法同时测定不锈钢中铬和锰[J].冶金分析(Metallurgical Analysis)2001,21(5):59-60.
[5]辛仁轩,余正东,郑建明,等.电感耦合等离子体原子发射光谱法原理及应用[M].北京:冶金工业出版社,2012:199.
[6]叶江雷,弓振斌,沈爱斯.茶叶中9种农药残留的毛细管气相色谱法测定[J].分析仪器(Analytical Instrumentation),2005(2):2023.
[7]李永库,李晓静,徐远金.固相萃取-毛细管气相色谱法测定茶叶中11种残留有机磷农药[J].理化检验-化学分册(Physical Testing and Chemical Analysis Part B:Chemical Analysis),2008,44(6):563-565.