燃烧氧化偶联离子色谱法检测甲醇中有机氯  

Combustion oxidation coupled ion chromatography to determine organic chlorine content in methanol

作　　者：周亚新[1] 胡荣宗[1] 戴深峻[1] 

机构地区：[1]厦门大学化学系,福建厦门361005

出　　处：《福建分析测试》2002年第3期1593-1595,1601,共4页Fujian Analysis & Testing

基　　金：海洋环境科学教育部重要实验室资助课题

摘　　要：本文提出采用燃烧氧化偶联离子色谱法测定甲醇中有机氯含量的新方法。方法先用离子色谱法直接定量甲醇中无机氯含量,再用离子色谱法测量甲醇中所含的总氯在燃烧氧化过程生成的Cl_2、HCl、气态的无机氯化合物被I吸收生成的Cl^-来定量甲醇中总氯含量。由测得的总氯含量和无机氯含量,计算得甲醇中有机氯含量。实验结果表明该方法经济、简单、准确、灵敏。A new method has been develope to determine organic chlorine content in methanol by using combustion oxidation coupled ion chrmatography. The method uses ion chromatography to directly determine inorganic chlorine in methanol, then uses ion chromatography to directly determine chloride ion, a substance that is made by iodide solution absorbing chlorine, chloride and chlorine hydride converted from the chlorine in methanol during combustion oxidation. so as to determine the content of whole chlorine in methanol, and according to the content of inorganic chlorine and whole chlorine in methanol, the content of organic chlorine in methanol is gotten. The method has economy, simplicity, accuracy, and sensitivity.

关 键 词：燃烧氧化 离子色谱 甲醇 氯 

分 类 号：TB9[一般工业技术—计量学]