基于紫外-可见光谱法快速检测工业废水COD的方法研究  

QUICK DETERMINATION OF COD IN INDUSTRIAL WASTE WATER BY ULTRAVIOLET-VISIBLE SPECTROMETRY

作　　者：沈志远 王玲玲 杜玉栋 邹绍锋 李小燕 Wang Lingling(Ningxia Eastern Thermal Power Co.,Ltd.,Yinchuan 750001)

机构地区：[1]中国石油宁夏石化公司,宁夏银川750026 [2]宁夏东部热电股份有限公司,宁夏银川750001

出　　处：《大氮肥》2023年第6期400-403,共4页Large Scale Nitrogenous Fertilizer Industry

摘　　要：通过对紫外-可见光谱法检测工业废水COD检测方法的研究,得到了COD特征吸收波长。经过对标准物质浓度进行验证,结果均在误差范围内。实际工业废水的测定结果与快速消解分光光度法的测定结果几乎吻合,且水样比对实验相对误差绝对值的平均值远远小于要求值,测定结果准确可靠。A research on the method to determine COD in industrial waste water by ultraviolet-visible spectrometry gets the characteristic absorption wavelength of COD,which is verified by the standard material concentration,and falls into the error range.The determination result from real industrial waste water is nearly close to that from fast digestion spectrophotometric method.Comparing the water sample ratio with the average value of experimental relative tolerance absolute value,it is far less than the requirement value.The determination result is accurate and reliable.

关 键 词：紫外—可见光谱法 工业废水 COD检测 相对误差 

分 类 号：O657.32[理学—分析化学] X832[理学—化学]