【摘要】 主要介绍COD_Mn自动滴定仪（电位法）在实验室中测定高锰酸盐指数的方法。该方法在国标法的基础上测定环境样品中的高锰酸盐指数,方法检出限可达到0. 10mg/L,测定下限为0. 40mg/L,对有证标准样品测定均在有效值范围内。因此该方法可以用于环境监测中高锰酸盐指数的测定。更多还原

【Abstract】 This paper mainly introduced the method of measuring the permanganate index in the laboratory by the COD_Mn automatic titrator（ Potentiometry）. The method is used to determine the permanganate index in the environmental sample based on the national standard method,the detection limit of which can reach 0. 10 mg/L,the determination limit is 0. 40 mg/L,and the Certified Reference Material tests are in the range of effective value. Therefore,this method can be used for the determination of permanganate index in environmental monitoring.更多还原