白酒是人们喜欢的饮料,而其中含的氰离子是一种剧毒物质,如果超过一定限度,则会使人中毒以致死亡。白酒中氰化物含量一般很低,用离子选择性电极测定,既能达到很高的灵敏度,又能准确、快速的进行测定,所用试剂少,设备简单、给分析工作者带来很多方便。一、仪器:PHS—2型酸度计; 氰离子选择电极(江苏泰县无线电厂); Liquor is a drink that people like, and the cyanide contained in it is a highly toxic substance. If it exceeds a certain limit, it will poison people and cause death. Cyanide liquor content is generally low, with ion-selective electrode determination, both to achieve high sensitivity, but also accurate and rapid determination, the reagents used, the device is simple, to the analysis of the workers a lot of convenience. First, the instrument: PHS-2 pH meter; cyanide ion selective electrode (Jiangsu Taixian Radio Factory);