Analysis is carried out in end-point samples by Winkler's titration and indophenol-blue for oxygen and ammonia-N, respectively.
氧
氨氮分别经温克勒
靛酚蓝在终端样品中测出。
Analysis is carried out in end-point samples by Winkler's titration and indophenol-blue for oxygen and ammonia-N, respectively.
氧氨氮分别经温克勒靛酚蓝在终端样品中测出。
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