臭氧紫外联合-分光光度法测定水中总氮  

Determination of Total Nitrogen in Water by UV/O_3-UV Spectrophotometry

作　　者：李清 杨慧中 

机构地区：[1]江南大学检测与过程控制研究所 [2]江苏省无锡市蠡湖大道1800号江南大学物联网学院,214122

出　　处：《光谱实验室》2011年第1期251-255,共5页Chinese Journal of Spectroscopy Laboratory

基　　金：无锡市污染防治基金(2008-1)

摘　　要：采用臭氧紫外联合-分光光度法测定水中总氮含量,对国标法中传统的氧化消解方法进行了改进。建立了一套臭氧紫外联合作用的装置,可以对含氮水样进行连续消解。通过实验确定出最佳消解条件,作出校准曲线,并进行精密度检验。与标准方法相比,本法具有无需添加化学试剂,可以在线连续氧化,快速,方便,精密度高等特点,可以应用于污水在线监测系统,具有较好的推广应用价值。UV/O3-UV spectrophotometry was used to determine the total nitrogen content of waste water by means of improvement of the traditional method for oxidation and digestion in the national standard.A device combining O3 with UV was established to continuously digest water samples containing nitrogen.Under the optimal digestion conditions,a calibration curve was obtained.Compared with standard methods,this approach has characteristics as follows：no need to add chemical reagent,being able to conduct on-line continuous oxidation,rapidness,convenience and high precision.This method can be applied in the online monitoring system of wastewater and meet the a great amounts of applications.

关 键 词：臭氧 紫外 分光光度法 总氮 

分 类 号：X832[环境科学与工程—环境工程] O657.32[理学—分析化学]