A new rapid determination method of waste water COD in mixed acid solutionH_2SO_4-H_3PO_4,with Mn(H_2PO_4)_2 as catalyst,has been proposed in this paper.

• 本文提出用Mn(H_2PO_4)_2作催化剂,在H_2SO_4-H_3PO_4混酸溶液中快速测定废水COD的新方法。