膜电极法测定BOD_5应注意的几个问题

Some Issues We Need to Pay Attention to When We Determing BOD_5 with ME method

生化需氧量(BOD5)是一个重要有机污染指标,是环境监测的重要参数之一。BOD5是一个复杂的生化过程,受到许多客观环境因素的影响,如样品温度、环境温度、搅拌速度,仪器校正等。采用膜电极法测定BOD5时,不可忽略这些因素对测定结果的影响。

Biochemical oxygen demand （BOD5）is one of the important indexes of orgamc polluTIon. It is also an important parameter of environmental monitoring.BOD5 has a complicated biochemical process and is affected by many external factors such as the sampled water temperature, environmental temperature, stir speed, and instruments verification. We shouldn＇t ignore these affected factors when we determine BOD5 with ME method.