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以亚戊基双（４′－苯并１５－冠－５）为中性载体，制得对Ｋ＾＋，ＮＨ４＾＋具有相近响应的ＰＶＣ膜离子选择性电极。Ｎｅｒｎｓｔ线线响应范围１×１０＾－＾１－８×１０＾－＾５ｍｏｌ／Ｌ；响应斜率为５３ｍＶ／ＰＭ；对Ｌｉ＾＋，Ｎａ＾＋，Ｃａ＾２＾＋，Ｍｇ＾２＾＋，Ｂａ＾２＾＋的选择性系数分别为......