直接紫外光度法测定废水中的二苯胺  

Measuring DPA with Direct Ultraviolet Photometric Analysis in Wastewater

作　　者：李生彬[1] 饶姗姗[1] 樊晓辉[2] 王拯[1] 肖举强[1] 

机构地区：[1]兰州交通大学环境与市政工程学院,甘肃兰州730070 [2]兰州交通大学化学与生物工程学院

出　　处：《西北民族大学学报（自然科学版）》2004年第2期24-26,64,共4页Journal of Northwest Minzu University(Natural Science)

摘　　要：二苯胺(DPA)水溶液在紫外区有特征吸收,因此本实验是在紫外光区(270nm)的分光光度法直接测定的.由于没有引入其他试剂,无引入误差,经与液相色谱方法比较,有良好的准确度。The main composition in wastewater is DPA,which contains no other organic substances in normal condition.We can detect it by applying direct ultraviolet photometric analysis. DPA in water has strong absorption in UV range. Thus, the experiment adopts photometric analysis in UV wavelength (270nm) to detect the content of DPA in wastewater directly. Because we didn't use another chemical reagent, so there is no other error being brought in. Compared with the HPLC method , the method is of high accuracy and easy operation.

关 键 词：废水 DPA 紫外光度法 特征波长 

分 类 号：O657.32[理学—分析化学]