摘要
本文建立了用分光光度法分析乙腈中的亚硝酸钠的方法。通过pH、显色时间、溶液温度的条件选择实验,消除了乙腈溶剂对显色反应的影响,测定下限为0.04 mg·L^(-1),相对标准偏差小于8.0%,加标回收率在100%±10%以内。
A spectrophotometric method for the analysis of sodium nitrite in acetonitrile was established.By conditional selection experiments of pH,color development time and solution temperature,the influence of acetonitrile solvent on the color reaction was eliminated.The determination limit was 0.04 mg/L,the relative standard deviation was less than 8.0%,and the recovery was 100%±10%.
作者
董永花
常素萍
DONG Yonghua;CHANG suping(Ningxia Coal-to-oil Chemical Quality Inspection and Measurement Center,National Energy Group,Yinchuan 750411,China)
出处
《化工技术与开发》
CAS
2024年第6期71-73,83,共4页
Technology & Development of Chemical Industry
关键词
乙腈
亚硝酸钠
分光光度法
acetonitrile
sodium nitrite
spectrophotometry