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一前言中性载体包括天然抗菌素(如缬氨霉素)、链状聚醚与王冠化合物。中性载体电极就是以其中某一种作为配位体所制成的PVC膜电极。 1967年Pedersen合成了四十九种大环聚醚,稍后又合成了九种,并发现它们能与碱金属或碱土金属阳离子形成稳定的络合物。 Kolthoff最近发表的“大环化合物在化学分析中的应用”评论中谈到:虽然化学杂志上已发表了数百个大环化合物,遗憾的是在分析化学中的应用方面论文尚不多。按其基本理论,王冠化合物作为配位体
A foreword Neutral carriers include natural antibiotics (such as valinomycin), chain polyethers and crown compounds. Neutral carrier electrode is one of them as a ligand made of PVC membrane electrode. Nineteen macrocyclic polyethers were synthesized by Pedersen in 1967 and nine later were synthesized and found to form stable complexes with alkali or alkaline earth metal cations. Kolthoff’s recently published review on the application of macrocyclic compounds in chemical analysis states that although hundreds of macrocyclic compounds have been published in chemical journals, unfortunately there are not many papers in analytical chemistry . According to its basic theory, the crown compound as a ligand