摘要
液膜离子选择电极的研究发展迅速,但迄今只是局限于用有机溶液作为液膜,用来测定水溶液中的组分。本文首次提出一种新型离子选择电极——水膜电极。采用水溶液作为液膜,可分析有机溶液中的组分。这种电极用于非水介质中的分析,有其独特的优点,可直接测量非水溶液中某种离子的平衡活度(或浓度),对理论研究有较大的意义。
A new type of ion-selective electrode-water membrane system is proposed and an
assumption of water membrane is confirmed. A NdCl_3 water membrane electrode has be-
en made te demonstrate its applicability to the determination of Nd (PMBP)_3 (PMBP=1-
phenyl-3-methyl-4-benzoyl-5-pyrazolone)in cyclohexanone. Conditions for stabilizing
potential of reference electrode in nonaqueous system are optimized. It is observed that
the potential response on the surface of two immiscible solution is bidirectional and the
absolute values of slopes are identical.
出处
《化学学报》
SCIE
CAS
CSCD
北大核心
1989年第2期174-177,共4页
Acta Chimica Sinica
基金
国家自然科学基金
