论文部分内容阅读
本文叙述了用共沉淀法制备AgI—Ag_2S混晶压片膜碘离子选择电极的条件,并测试了电极的各项性能。同时,考察了不同压片压力对电极性能的影响。并将电极暴露在空气中,干存放两年以上,再重新考察电极性能的各项指标,仍能达到制备电极时的水平。同时,还使用该电极测定了食物中碘的含量,与一般分析方法对照,基本一致。
In this paper, the conditions for the preparation of AgI-Ag_2S mixed crystal tablet iodide ion selective electrode by coprecipitation were described and the properties of the electrode were tested. At the same time, the effects of different pressure on the performance of the electrode were investigated. And the electrode exposed to the air, dry storage for more than two years, and then re-examine the performance of the electrode can still reach the electrode preparation level. At the same time, the electrode was also used to determine the content of iodine in food, which was basically the same as the control method.