紫外光催化消解-分光光度法测定循环水中的总磷  

Determination of Total Phosphorus in Recycle Water by UV Photo-Digestion with Spectrophotometry

作　　者：孙晓娟[1] 张益新[1] 

机构地区：[1]江苏石油化工学院安全与环境工程系,江苏常州213016

出　　处：《石油化工》2001年第9期713-715,共3页Petrochemical Technology

摘　　要：样品经紫外光反应器消解后 ,形成正磷酸 ,以磷钼蓝的形式测定。对紫外光催化消解所需的试剂及其用量、消解时间、酸度条件等参数进行了优化。用于测定循环水样、有机膦标准物质时 ,获得的结果与标准方法以及其它分析方法测得的结果相符合。方法简单、快速 ,精密度。An UV photo-digestion system for the determination of total phosphorus in recycle waters was described. Samples were digested in an UV photo reactor,and the orthophosphate formed was detected as phosphomolybdenum blue.Reagents and digestion parameters were optimized.The results obtained were in close agreement with those from a standard digestion method,when the proposed method was applied to recycle water samples.This method is simple and rapid and there is no contamination of the environment as well as samples.The precision is better than 0 4%,and the accuracy satisfactory.

关 键 词：紫外光消解 分光光度法 循环水 总磷 测定 

分 类 号：TQ085.1[化学工程]