一种化学需氧量(CODCr)的高效测定方法 --高压密闭消解法

An Efficient Method for the Determination of Chemical Oxygen Demand (CODCr) - High Pressure Closed Digestion Method

论述了一种高压密闭快速消解测定水中化学需氧量(CODCr)的方法,用以替代传统回流消解技术,探讨了高压密闭消解的最优条件参数,评价了方法的精密度和准确度。长期的实验结果表明:该方法完全满足污水排放控制、生态环境监测等对检测及时性的要求,实现了无污染、低成本、快速、准确测定批量水质样品的目的。

This paper discusses a method for the determination of chemical oxygen demand(CODCr)in water by high-pressure closed rapid digestion,which can replace the traditional reflux digestion technology,discusses the optimal condition parameters of high-pressure closed digestion,and evaluates the precision and accuracy of the method,the long-term experimental results show that the method fully meets the requirements of sewage discharge control,ecological environment monitoring and other requirements for detection timeliness,and realizes the purpose of non-polluting,low-cost,rapid and accurate determination of batch water quality samples.