水质COD值的快速测定方法确认  

Confirmation of Rapid Determination Method for COD Value of Water Quality

作　　者：武帅 Wu Shuai(Taiyuan Aviation Instrument Co.,Ltd.,Taiyuan Shanxi 030006,China)

机构地区：[1]太原航空仪表有限公司,山西太原030006

出　　处：《山西化工》2024年第8期104-105,共2页Shanxi Chemical Industry

摘　　要：为了缩短化学需氧量(COD值)的检测时间,用邻苯二甲酸氢钾绘制标准曲线,根据比尔定律,按校准曲线换算成被测水样的化学需氧量。通过摇动、震荡等方式将反应液充分混匀,之后进行测试,测试结果用t检验方法验证。与传统方法相比,新方法实验数据可靠性强,检测时间大幅缩短,因此可以取代国标法成为实验室检测COD值的新手段。In order to shorten the detection time of chemical oxygen demand(COD value),a standard curve was drawn using potassium hydrogen phthalate,and according to Beer's law,the calibration curve was converted into the chemical oxygen demand of the tested water sample.Mix the reaction solution thoroughly by shaking,shaking,and other methods,then conduct testing,and verify the test results using t-test method.Compared with traditional methods,the new method has strong experimental data reliability and significantly reduces detection time,making it a new means of laboratory COD value detection that can replace the national standard method.

关 键 词：COD值 吸光度 T检验 

分 类 号：X832[环境科学与工程—环境工程]