By determination with US Rosemount DC-85A total organic carbon analyzer and by means of TOC regression equations(COD=a+bTOC) expression,it turned out that the COD numerical value can be deduced from TOC determination.

• 研究了有机化工废水COD与TOC的相关性。 用Rosemount DC-85A有机总碳测定仪测定了有机废水的TOC,并通过TOC回归方程(COD=a+bTOC)的表达,发现它们有很好的相关性。