摘要
采用库仑滴定法,以三氧化钨做催化剂,炉温1153℃下测定电解二氧化锰中硫酸根含量,得到满意的检测结果。2个样品分别测定15次和11次平行样,测定结果的相对标准偏差分别为2.73%和1.91%,2个样品分别做5个平行样的加标回收,加标回收率为91.4%~107.5%,与《无汞碱性锌-二氧化锰电池用电解二氧化锰》(QB/T 2629—2004)中硫酸钡重量法测定结果比较,2个样品相对偏差分别为-3.45%和-3.77%。方法环保、快速、设备便宜、成本低、操作简单方便,重复性好,结果准确,适用于电解二氧化锰硫酸根含量的快速测定,其应用前景广阔。
In this paper,we used the coulometric titration method to determine the sulfate content in electrolytic manganese dioxide with tungsten trioxide as the catalyst and the furnace temperature of 1153℃.We have obtained satisfactory detection results.The two samples were measured 15 times and 11 times parallel samples,the relative standard deviation of the determination results were 2.73%and 1.91%.The two samples were made 5 parallel samples of spiked recovery,the recovery of the standard was between 91.4%and 107.5%.The relative standard deviations of the two samples were-3.45%and-3.77%when compared with the results of the weight method of barium sulfate in QB/T 2629-2004.The method is environmentally friendly,rapid,cheap equipment,low cost,simple and convenient operation,good repeatability and accurate results.It is suitable for the rapid determination of the sulfate content of electrolytic manganese dioxide and its application is promising.
作者
刘泽斌
宋业成
何京明
刘守廷
陶弋
LIU Zebing;SONG Yecheng;HE Jingming;LIU Shouting;TAO Yi(Guangxi radiation environment supervision and management station, Nanning, Guangxi 530222, China;Chengdu university of technology, Chengdu, Sichuan 610059, China;Guangxi university of traditional Chinese medicine, Nanning, Guangxi 530200, China;Guangxi Boce Test Technical Services Co., Ltd., Nanning, Guangxi 530007, China;Guangxi analysis and test research center, Nanning, Guangxi 530022, China;Chinasoft International Ltd.(Chengdu Branch),Chengdu,Sichuan610059,China)
出处
《中国锰业》
2022年第3期100-103,共4页
China Manganese Industry
关键词
库仑滴定法
快速测定
电解二氧化锰
硫酸根
Coulometric titration
Rapid determination
Electrolytic manganese dioxide
Sulfate
