污水中总氮(T_N)、总磷(T_P)的快速同时检测

Rapid Simultaneous Determination of TN and TP Contents in Sewage

本文研究了采用离子色谱法同时测定污水样品中TP、TN的含量的可行性，通过系列的实验，并与标准方法比对，结果表明，利用该方法可实现对污水中TP、TN含量的同时测定，具有快速、简单、准确的特点。应用此方法测定2种污水样品中的TN和TP，相对标准偏差在2.6%～5.1%之间，回收率在94.0%～102.0%之间。

This paper reported the feasibility of the method of IC for rapid and accurate determination of TN and TP contents in sewage. The method for fapid simultaneous determination of TN and TP contents in sewage was obtained through comparing the results of standard method in series examinations. This method is simple and convenient,fast and exact.In the analysis of 2 water sampes for their TN and TP contents by this method,RSD’s（n=7）found were in the range of 2.6%~5.1%,and recoveries in the range from 94.0%~102.0%.