利用分光光度法测定水体中的化学需氧量

The Determination of COD in Water Bodies by Using the Method of Visible Spectroscopy

采用分光光度法对长春市地表水、污水吐口、污染源进行了化学需氧量的测定。实验结果表明 :在准确度、精密度方面与国标法有较好的可比性 ,所用仪器可在现场对水样进行快速、批量监测 ,省时、省力、省试剂 。

The content of COD in surface water, living sewage and pollution sources in Changchun city was determined by using the method of visible spectroscopy. The results showed that this method was comparable to the standard method used in China in terms of accuracy and precision. It met with the requirement of our country for the control on total discharged sewage and possessed the characteristic of saving time, labor force and reagents. By using the instrument mentioned in this method, we could determine the content of COD quickly and massively on the spot.