地表水检测中总氮小于三氮的原因分析及优化建议

Cause Analysis of Less Total Nitrogen than Three Nitrogen in Surface Water Detection and Its Optimization

通过对地表水从样本采集到检测整个过程的分析和比对试验,找出影响总氮数值小于氨氮、亚硝酸盐氮、硝酸盐氮数值之和的原因,从样本采集、保存运输、分析方法三个方面提出优化建议。

By analyzing the whole process from sampling to detecting and the comparative experiments, we find out why the value of the total nitrogen is smaller than the added value of the ammonia nitrogen, nitrite nitrogen and nitrate nitrogen. It is suggested to optimize the sampling, storage and transport and the analytical methods.