摘要
建立了微波消解-溴酸钾法测定电子级掺杂锑扩散源锑含量的测试方法。在样品中加入盐酸(无硝酸根),经过微波消解,用盐酸(无硝酸根)控制酸度,滴定时温度为70~90℃,以甲基橙为指示剂,用溴酸钾标准滴定溶液直接滴定锑扩散源中锑含量。实验表明,该方法回收率为99.20%~100.24%,相对标准偏差(RSD,n=6)为0.073%~0.10%,分析结果稳定、准确度高,适用于高分子材料有机锑扩散源常量滴定分析,能够满足电子级掺杂锑扩散源的分析检测要求。方法快速准确,具有良好的经济效益和社会效益。
A method for the mensuration of antimony content in electronic grade antimony dopant by microwave digestion-potassium bromate method was established.Hydrochloric acid(nitrate free)was added to the sample,after microwave digestion,the acidity was controlled by hydrochloric acid(nitrate free),and the temperature during titration was 70~90℃,methyl orange as indicator,the antimony content in electronic grade antimony dopant was directly titrated with standard titration solution of potassium bromate.The recovery rate of the method was 99.20%~100.24%,the relative standard deviation was(RSD,n=6)0.073%~0.10%,the analysis result was stable and the accuracy was high.The method is suitable for the constant titration analysis of organic antimony dopant polymer materials,it can meet the analysis and detection requirements of electronic grade antimony dopant.The method is rapid and accurate,and has good economic and social benefits.
作者
孟宪冬
孟蓉
王连旺
MENG Xian-dong;MENG Rong;WANG Lian-wang(Beijing Institute of Chemical Reagents Co.,Ltd.,Beijing 102607,China)
出处
《化学试剂》
CAS
北大核心
2020年第12期1465-1468,共4页
Chemical Reagents
关键词
微波消解
溴酸钾法
氧化还原
有机锑
常量分析
microwave digestion
potassium bromate method
oxidation reduction
organic antimony
constant analysis
