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1968年H. Freiser把离子缔合萃取的原理首次应用于研制ISE,制成了一系列基于Aliquat—336S季胺盐阴离子液膜电极,其线性范围大多在10~(-1)～10~(-3)M之间。本工作根据Freiser等近年来的报道并参考R. W. Cattrall等的工作。采用国产季胺盐7402(与N—263)制成了一种选择性较好、工作寿命长达一年的PVC膜高铁离子选择电极。本文报道这种电极的制作、性能及其在合金与矿样分析中的应用。
In 1968, H. Freiser used the theory of ion association extraction for the first time in the development of ISE, and made a series of quaternary ammonium salt anionic liquid membrane electrodes based on Aliquat-336S. The linear range is mostly in the range of 10-1 to 10 ~ -3) M. This work is based on recent reports by Freiser et al and with reference to R. W. Cattrall et al. A PVC film ferric ion selective electrode with good selectivity and long service life of one year was made by using domestic quaternary ammonium salt 7402 (with N-263). This article reports the fabrication and properties of this electrode and its application in the analysis of alloys and mineral samples.