甲烷氯化物中微量氯单质快速分析方法研究
Study on Rapid Analysis Method of Trace Chlorine in Methane Chloride
陈彩琴 1邵红才 1吴云竹 1傅永斌1
作者信息
- 1. 浙江衢化氟化学有限公司,浙江 衢州 324004
- 折叠
摘要
为快速检测甲烷氯化物生产过程反应液中氯单质含量,以碘化钾为显色剂,将反应液中氯单质还原成氯离子,碘离子氧化成碘单质,通过目视比色法测定.通过建立标准色阶,考察显色剂用量,显色时间等对结果的影响.结果表明,该方法具有较高的准确性,加标回收率在96.8%～103.3%,检出限为1 mg/L,操作简单,可满足生产紧急需要.
Abstract
To quickly detect the content of chlorine element in the reaction solution of methane chloride production process,potassium iodide is used as a chromogenic agent to reduce chlorine element in the reaction solution to chloride ions,and iodine ions are oxidized to iodine element,which is determined by visual colorimetry.By establishing a standard color scale,it investigates the effects of reagent dosage,color development time,and other factors on the results.The results show that the method has high accuracy,with a spiked recovery rate of 96.8%to 103.3%,a detection limit of 1 mg/L,simple operation,and can meet urgent production needs.
关键词
甲烷氯化物/氯单质/比色法Key words
methane chloride/chlorine/colorimetry引用本文复制引用
出版年
2024
NETL
NSTL
维普
万方数据