...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Chemia Analityczna >Iodimetric Determination of Tetrathionate and Simultaneous Determination of Thiosulfate and Tetrathionate
【24h】

Iodimetric Determination of Tetrathionate and Simultaneous Determination of Thiosulfate and Tetrathionate

机译：碘量法测定四硫代酸盐和同时测定硫代硫酸盐和四硫代酸盐

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The method ofiodimetric determination oftetrathionate and simultaneous determination of thiosulfate and tetrathionate in one sample is described. Tetrathionate in alkaline me- dium (c(NaOH) = 5 moll-l) is stoichiometrically converted into thiosulfate and sulfite, which react with iodine. In the volumetric titration with the potentiometric end-point de- tection the determination range is 10-800 Ilmol for tetrathionate. In the first stage simul- taneous determination of thiosulfate and tetrathionate, thiosufl1ate is oxidized in neutral medium with iodine to tetrathionate. In the second stage the total content oftetrathionate in alkaline medium is iodimetrically determined. The proposed method allows the deter- mination ofboth compounds in the range from 30 to 400 Ilmol in a sample with relative accuracy +-1%.
机译：描述了一种碘量法测定四硫代酸盐同时测定一样品中硫代硫酸盐和四硫代酸盐的方法。碱性介质中的四硫代硫酸盐（c（NaOH）= 5摩尔-1）化学计量转换为硫代硫酸盐和亚硫酸盐，它们与碘反应。用电位滴定终点检测法进行体积滴定时，四硫代酸盐的测定范围为10-800 Ilmol。在第一步同时测定硫代硫酸盐和四硫代酸盐时，硫代硫酸盐在中性介质中与碘氧化为四硫代酸盐。在第二阶段，碘量法测定碱性介质中四硫氰酸盐的总含量。所提出的方法可以测定样品中30至400 Ilmol范围内的两种化合物，相对精度为-1％。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号