二氯甲烷替代三氯甲烷在几种阴(阳)离子活性物含量检测分析中的应用  

Application of Dichloromethane Instead of Trichloromethane in Anion and Cation Detection Analysis

作　　者：蔡艳 梁润成 胡京利 CAI Yan;LIANG Runcheng;HU Jingli(Beijing Lvsan Technology Co.,Ltd.,Beijing 100094,China)

机构地区：[1]北京绿伞科技股份有限公司,北京100094

出　　处：《中国洗涤用品工业》2023年第4期29-33,共5页China Cleaning Industry

摘　　要：国家标准阴(阳)离子活性物的测定方法采用直接两相滴定法,应用二氯甲烷代替三氯甲烷作为萃取溶剂,结果表明,该法具有良好的准确度,并且二氯甲烷的毒性较三氯甲烷小,用二氯甲烷替代三氯甲烷对阴(阳)离子活性物含量的检测,具有方便性、安全性、实用性的明显优势,两者对比测试无显著差异。The national standard method for the determination of anionic(cationic)active substances adopts the direct two-phase titration method,using dichloromethane instead of chloroform as the extraction solvent.The results show that this method has good accuracy,and the toxicity of dichloromethane is less than that of chloroform.Using dichloromethane instead of chloroform to detect the content of anionic(cationic)active substances has obvious advantages of convenience,safety and practicality,and there is no significant difference between the two comparative tests.

关 键 词：二氯甲烷 三氯甲烷 两相滴定法 

分 类 号：TQ423[化学工程]