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超声粉碎-TOC/TN仪法直接测定污水处理厂废水中的总氮
引用本文:程晓春,薛桂楠,王珂.超声粉碎-TOC/TN仪法直接测定污水处理厂废水中的总氮[J].新疆环境保护,2011,33(2):19-20,28.
作者姓名:程晓春  薛桂楠  王珂
作者单位:江苏如皋市环境监测站,江苏 如皋,226500
摘    要:污水处理厂废水经超声粉碎后,使用TOC/TN仪直接测定总氮.对仪器条件、进样方式、微波粉碎时间及加标回收率进行了探讨.相对标准偏差<2.35%,测定结果与国标法一致,相对误差<±1.3%,回收率为95.3% ~97.8%.方法简便、快速、准确.

关 键 词:超声粉碎  直接测定  总氮  悬浮物

Total Nitrogen Direct Determination in Sewage of Wastewater Treatment Plants by Ultrasonic Crush-TOC/TN Method
CENG Xiao-chun , XUE Gui-nan , WANG Ke.Total Nitrogen Direct Determination in Sewage of Wastewater Treatment Plants by Ultrasonic Crush-TOC/TN Method[J].Environmental Protection of Xinjiang,2011,33(2):19-20,28.
Authors:CENG Xiao-chun  XUE Gui-nan  WANG Ke
Institution:(Rugao Environmental Monitoring station,Jiangsu Rugao,226500,China).
Abstract:The total nitrogen in sewage from wastewater treatment plants was directly detected by TOC/TN method after ultrasonic crush.This paper discusses the important parameters including instrument conditions,sample putting mode,ultrasonic crush time and recovery rate.The relative standard deviation of using this may is less than 2.35%,the relative error is less than ±1.3% and recovery rate are 95.3%~97.8% that consistent with the GB method.It is a simple,fast and accurate method to wastewater detection.
Keywords:ultrasonic crush  direct determination  total nitrogen  suspended material
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