摘要
样品0.1000 g用硫酸(1+1)溶液10 mL低温加热溶解,加热至冒硫酸烟,在高温下滴加硝酸至紫色消失,并用水定容至100 mL。此溶液供电感耦合等离子体原子发射光谱法测定钛合金中钯、钇、硼、铌、钽的含量,选择的分析谱线分别为Pd 360.955 nm、Y 360.073 nm、B249.773 nm、Nb 269.706 nm、Ta 240.063 nm。以基体匹配法补偿基体效应制作工作曲线。5种元素的检出限(3s)依次为8.1,2.7,1.8,4.8,2.1μg·L^(-1)之间。测定值的相对标准偏差(n=8)在1.1%~2.9%之间。按上述方法分析英国标准物质(BS C101XTi60),测定值与认定值一致。
The sample （0. 100 0 g） was dissolved in 10 mL of H2SO4 （1＋1） solution by heating at low temperature, and then evaporated to fumes of H2SO4. Nitric acid was added dropwise into the solution at high temperature until violet disappeared, and then the solution was made up its volume to 100 mL with water. The solution was used for ICP-AES determination of Pd, Y, B, Nb and Ta in titanium alloy, and analytical spectral lines selected were Pd 360. 955 nm, Y 360. 073 nm, B 249. 773 nm, Nb 269. 706 nm and Ta 240. 063 nm. The matrix matching method was used to correct the matrix effect in preparation of working curves. Values of detection limits （3s） found for 5 elements were 8. 1, 2.7, 1.8, 4. 8, 2.1μg · L^- 1 , respectively, And values of RSDs （n=8） found were in the range of 1. 1%-2. 9%. A CRM of BS C101XTi60 was analyzed by the proposed method, giving results in consistency with the certified values.
出处
《理化检验（化学分册）》
CAS
CSCD
北大核心
2018年第1期31-34,共4页
Physical Testing and Chemical Analysis(Part B:Chemical Analysis)
基金
江苏检验检疫科研项目(2014KJ04)
