摘要
饮用水中痕量有机污染物分析用试剂二氯甲烷的纯化用浓硫酸洗至酸层无色后,以全玻璃仪器蒸馏三次,浓缩50～100倍经气相色谱检查无干扰杂质后方可满足分析测试的要求。
For analysis trace organic pollutants in potable water, the solvent of dichloromethane was discoloured by concentrated sulfuric acid untill there was no any yellow color in sulfuric acid,and then it was distillated three times by all glassware.No impurity was detected by GC after concentration of 50—100 times.
出处
《贵州师范大学学报（自然科学版）》
CAS
1993年第1期1-5,共5页
Journal of Guizhou Normal University：Natural Sciences
基金
国家自然科学基金
关键词
二氯甲烷
纯化
有机污染物
饮用水
Dichioromethane, Purification, Organic Pollutants, Potable
