电位法测定矿石中的碘  

Determination of Iodine in Ore by Potentiometry

作　　者：田言 卢大磊[2] 贾双珠[3] 李武斌[2] 

机构地区：[1]瓮福(集团)有限责任公司,贵州省福泉市马场坪550501 [2]贵州大学化学与化工学院,贵阳市贵工路1号550003 [3]黔南民族师范学院化学与化工系

出　　处：《光谱实验室》2013年第2期929-932,共4页Chinese Journal of Spectroscopy Laboratory

基　　金：高层次人才科研条件特助经费(TZJF-2010年-075号)

摘　　要：采用电位法对矿石中碘含量进行测定。在加热条件下,加入一定浓度的盐酸对矿石进行溶解、过滤,收集滤液,用电位法测定其中碘含量。研究结果表明,该方法的最低检出限为20μg/g,加标回收率为98.85%—102.94%,相对标准偏差在2.23%—2.67%之间,测定结果准确、可靠,具有良好的应用前景。Iodine in ore was measured by the potentiometry. Under heating condition, ore dissolved in certain concentration hydrochloric acid ;after filtering and collecting the filtrate,measuring the concentration of iodine depending on the potentiometry. The results show that the detection limit of iodine is 20μg/g, recycled percentage of adding standard solution is 98.85%-102.94%,relative standard deviation is in the range from 2.23% to 2.67%. The result is accurate and reliable,and the method has a preferably applied prospect.

关 键 词：矿石 碘 电位法 

分 类 号：O657.15[理学—分析化学]