浊度法测定五氧化二锑粉体中的氯含量  

Determination of Chlorine Content in Antimony Pentoxide Powder by Turbidimetry

作　　者：张晓娟 符招弟 魏伟 刘艳花 张琮 杨林 ZHANG Xiaojuan;FU Zhaodi;WEI Wei;LIU Yanhua;ZHANG Cong;YANG Lin(Testing Technology Company of Changsha Research Institute of Mining and Metallurgy Co.Ltd.,Changsha 410012,China;Hunan Agricultural University,Changsha 410012,China)

机构地区：[1]长沙矿冶院检测技术有限责任公司,湖南长沙410012 [2]湖南农业大学,湖南长沙410012

出　　处：《分析测试技术与仪器》2025年第1期63-68,共6页Analysis and Testing Technology and Instruments

摘　　要：采用浊度法测定五氧化二锑粉体中的氯含量.探究了样品溶解方法、溶解酸度、样品质量和溶解时间对测定结果的影响.结果表明:五氧化二锑粉体样品质量为0.5000~1.0000 g,10%硝酸水溶液溶解,酸溶时间2 h后定容测定的准确度较高.进一步进行加标回收试验,得到五氧化二锑粉体中氯含量的加标回收率均在96.20%~99.13%之间,说明方法的准确度高.同时进行了11次平行试验,得到的相对标准偏差均小于5%,表明方法精密度高、重复性良好.A turbidimetry for the determination of chlorine in antimony pentoxide powder was established.The experimental conditions of dissolution method,concentration of nitric acid,sample mass,and dissolution time were studied.The results showed that the sample mass of antimony pentoxide powder was 0.5000~1.0000 g and the solution was dissolved in 10%nitric acid solution for 2 h.The spiked recoveries of chlorine in the sample were 96.20%~99.13%,indicating the high accuracy of the method.At the same time,11 parallel experiments were carried out,and the relative standard deviations were all less than 5%,which showed that the method has a good accuracy and repeatability.

关 键 词：五氧化二锑粉体 氯含量 浊度法 

分 类 号：O657.3[理学—分析化学]