氨氮实验室方法和在线监测仪器方法的比对

Comparison of ammonia nitrogen laboratory methods and online monitoring instrument methods

对四家实验室进行实验室与在线监测仪器的方法比对,采用标准物质核查、加标回收率测试、实际水体的比对,以及悬浮物、硬度、氯对结果影响的测试,分析比较了氨氮的实验室纳氏试剂法、自动监测水杨酸分光光度法、氨气敏电极法之间的差异,同时也验证了自动监测方法的准确性和可靠性。

The comparison of the methods of laboratory and online monitoring instruments in four laboratories, using standard substance verification, spiked recovery test, actual water body comparison, and the test of suspended solids, hardness and chlorine on the results, analysis The differences between the laboratory Nash reagent method of ammonia nitrogen, the automatic monitoring of salicylic acid spectrophotometry and the ammonia gas sensing electrode method were compared, and the accuracy and reliability of the automatic monitoring method were also verified.