纳氏试剂分光光度法是各级环境监测站氨氮测定的首选方法在实际操作中，空白值对氨氮测定的结果有较大的影响，本文结合实际工作，从纳氏试剂配置、酒石酸钾钠的质量以及不同滤纸三方面对空白试验值的影响作了比较。%Nessler＇s reagent spectrophotometric method in environmental monitoring station of ammonia nitrogen determination method of choice in the actual operation, the blank value of ammonia nitrogen determination results have great influence, this paper combined with practical work, from Nessler＇s reagent configuration, potassium sodium tartrate quality as well as the different filter paper three aspects to the blank value influence the comparison of.
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