摘要
用盐桥直接作铂阴极隔离室,以防止电极产物影响库仑滴定,具有库仑池內阻小,制作简单的优点,测定结果的标准偏差σ=0.009,在pH=4的HAc-NaAc缓冲溶液中电流效率在99%以上,同时对库仑滴定条件:酸度、记时、稳流进行讨论.
A salt bridge was used as a separated chamber for the plalinium cathode to prevent the effect of the electrode products. The coulometer constituted in this way has a small cell volume and is easy to be assembled. The current effe-ciency determined with this coulometer at pH 4 in a HAc-Na Ac buffer solution is higher than 99%. The standard deviation is 0.009, Conditions for coulomefric titration was also discussed in the paper.
出处
《辽宁师范大学学报（自然科学版）》
CAS
1991年第4期330-334,共5页
Journal of Liaoning Normal University:Natural Science Edition
关键词
库仑滴定
电化学分析
硫代硫酸钠
electroanalytical chemistry
coulomb's titration
sodium thiosulfate
