化学需氧量快消比色皿法低量程实验条件探讨  

Discussion on Low Range Experimental Conditions of Chemical Oxygen Demand Rapid Colorimetric Metho

作　　者：廖成朋 赵汝汝 Liao Chengpeng;Zhao Ruru(Chongqing state environmental monitoring Co Ltd;Technical center of Chongqing entry exit inspection and Quarantine Bureau,Chongqing, 400020, China)

机构地区：[1]重庆国环环境监测有限公司 [2]重庆出入境检验检疫局技术中心,重庆400020

出　　处：《科技资讯》2017年第22期210-212,214,共4页Science & Technology Information

摘　　要：对水质中化学需氧量测定的快速消解分光光度法(HJ/T 399—2007)中低量程实验条件进行探讨,相对对误差在0.00%~1.20%之间,精密度(RSD)为0.00%~0.74%。并用重铬酸盐法和本法对低浓度水样进行对比分析,证明采用两种方法测定结果无显著差异。The low range experimental conditions of rapid digestion spectrophotometry(HJ/T399-2007)for determination of COD in water quality are discussed.The relative error is between0.00%～1.20%and the precision(RSD)is0.00%～0.74%.The comparison of dichromate method with this method in low concentration water samples showed that there was no significant difference between the two methods.

关 键 词：化学需氧量 快速消解分光光度法 重铬酸盐法 低量程实验 

分 类 号：X82[环境科学与工程—环境工程]