摘要
试验了艾斯卡试剂半熔温度对离子色谱法测定多金属结核中碘的影响，选定半熔温度为６７０℃可控制锰酸盐的形成以消除其对测碘的干扰。用此法测定多金属结核标样中碘，其结果与信息值符合，９次测定的ＲＳＤ小于２５％，加标回收率在９５５％～９７％。
A method for determination of trace iodine in polymetallic nodules by Eschka mixture semi_melting, ion chromatography was developed. Semi_melting temperature of 670℃ was selected in order to control the formation of manganates and eliminate the interferences from manganates. The method was applied to the determination of trace iodine in standard polymetallic nodule reference materials. The results were in good agreement with information values. The recoveries of iodine were 95.5%～97% with precision of <2.5% RSD( n =9).
出处
《岩矿测试》
CAS
CSCD
北大核心
1997年第2期101-103,共3页
Rock and Mineral Analysis
关键词
碘
锰
离子色谱
熔矿温度
多金属结核
iodine, manganese, ion chromatography, semi_melting temperature
