【摘要】 综述了COD测定改进方法的发展和研究现状,在指出国标重铬酸钾法不足的基础上,阐述了现有测定方法的改进,如消解方法的改进、替代银催化剂的研究、氯离子干扰的消除等,同时介绍了几种与国标法完全不同的COD测定的新方法,从而为化学需氧量的测定提供了更准确更先进的方法。更多还原

【Abstract】 It summarizes the modified method of the development and research existing condition of the COD determination,overviews the existing determination methods,such as slaking method improvement,substituted silver catalyst research,chloride disturbance slaking,based on pointing out the Chinese Standard potassium dichromate method,and introduces some new methods that are different the COD Chinese Standard method,which will supply exacter and more advanced methods to the determination of the chemical oxygen demand.更多还原