摘要
用改进后的二苯碳酰二肼分光光度法测定水样中六价铬,样品显色时只加入1m l1+1硫酸与2m l显色剂(1)。与原方法相比,简化分析步骤,提高分析速度,精密度和准确度都得到很好的保证。
The hexavalent chromium in water is determined with improved dibenzoyl, when the sample appears color, 1 ml sulfuric acid and 2 ml color agent are added. Compared with organic method, the analysis procedure is simplified, analysis speed is raised and precision and accuracy are guaranteed well.
出处
《内蒙古环境保护》
2006年第2期39-40,共2页
Inner Mongolia Environmental Protection
关键词
测定六价铬
简化操作
分析速度
determination of hexavalent chromium
simplified operation
Analysis speed
