本文叙述废水中总氰(包括游离氰和络合氰)的自动连续测定装置。在电镀废水中经常有相当数量的氰化物,这些废水往往排入公共河流中,因此要求分析和控制废水中氰化物的含量。过去常用化学分析法,进行定时取样分析,也有基于比色原理的氰化物自动分析仪,但这种方法需用的化学试剂较多,而且需要制备各种准确浓度的溶液。在电分析方法中,直 This article describes the automatic continuous determination of total cyanide (including free cyanide and complex cyanide) in wastewater. There is often a significant amount of cyanide in electroplating wastewater, which is often discharged into public rivers and therefore requires analysis and control of cyanide content in wastewater. In the past often used chemical analysis, timing sampling analysis, but also based on colorimetric cyanide automatic analyzer, but this method requires more chemical reagents, and the need to prepare a variety of accurate concentrations of the solution. In electrical analysis methods, straight