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用普鲁士蓝斑点形成法测定微量氰化物的方法,需要结构较复杂的Gest(R)空气泵和滤纸托架等;采用异烟酸吡啉酮比色法的操作手续也较繁琐。本文在文献[1]工作的基础上,以玻璃喷射泵代替空气泵,并对滤纸托架装置和实验条件等作了改进。采用简便的装置把CN的分离富集与测定结合起来,满意地测定了微量CN~-方法分析手续简便,操作条件允许变化范围宽,适用范围广,也容易掌握,可用于电镀废水、工业污水中微量CN~-的测定。
Prussian blue spot formation method for the determination of trace cyanide method requires a more complex structure of Gest (R) air pump and filter paper holder; using isonicotin pyrinone colorimetric procedure is more cumbersome. Based on the work in [1], this paper replaced the air pump with a glass jet pump, and improved the filter paper holder device and experimental conditions. A simple and convenient device was used to separate and enrich the CN with the determination of trace CN ~ -. The analysis method was simple, the operating conditions allowed a wide range of changes, wide range of applications, and easy to grasp. It can be used in electroplating wastewater, industrial wastewater Determination of trace CN ~ -.