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前言我国盐湖分布极广,组成复杂,存在于盐湖沉积盐和湖水中之碘的含量一般极微,目前的数种测定方法中,一般可检出50微克/升,故需探索一个灵敏度较高的方法。我们进行了有关微量碘的分析测定方法的试验,在 T.P.Hadjiioannou 等人对天然水分析工作的基础上对其方法做了些修改,研究了影响催化反应的条件,补充了盐湖中常见的干扰离子试验,以及 IO_3~-、IO_4~-、在氯化钠存在下,都能对 Ce~(+4)—As~(+3)氧化还原反应发生与碘类似的催化作用的试验。试
Preface China’s salt lake is extremely wide and complex in composition. The iodine content present in sedimentary salt and lake water of salt lakes is generally very low. In the current measurement methods, 50 μg / l can be generally detected, so it is necessary to explore a high sensitivity Methods. We conducted a test on the method of determination of trace amounts of iodine. Based on the work of TPHadjiioannou et al. On natural water analysis, we made some modifications to the method, studied the conditions that affect the catalytic reaction, and added the common interference ions Test, and IO_3 ~ -, IO_4 ~ -, in the presence of sodium chloride, Ce ~ (+4) -As ~ (+3) redox reaction with iodine similar catalytic effect of the experiment. test