地表水中六价铬测定分析方法的改进  

Improvement of Analytic Method of Hexavalent Chromium Determination in Surface Water

作　　者：汪晴 

机构地区：[1]珠海市斗门区环境保护监测站,广东珠海519000

出　　处：《广东化工》2015年第12期200-201,共2页Guangdong Chemical Industry

摘　　要：用改进后的二苯碳酰二肼显色剂,测定地表水中的六价铬时只加入2.5 m L显色剂。与原方法相比,改进后方法的精密度和准确度均符合要求,适用于地表水中六价铬的测定。改进后的方法具有快捷、简便、省时的特点,适合大批量水样的测定。Using improved diphenylcarbazide chromogenic agent, it＇s only need to join 2.5 mL chromogenic agents to determinate hexavalent chromium in surface water. Compared with the original method, both the precision and accuracy of the improved method accord with the demands. It is suitable for the determination of hexavalent chromium in surface water. The improved method is fast, convenient, timesaving, and aooropriate for the determination of water samples in bulk.

关 键 词：六价铬 二苯碳酰二肼 分光光度法 

分 类 号：X832[环境科学与工程—环境工程]