杯芳烃银离子敏感场效应晶体管传感器

Sliver Ion-Sensitive Field-Effect Transistor Based on Calixarene

报道了硫醚取代的杯［４］芳烃化合物的合成，以此化合物为敏感材料，研制了聚氯乙烯膜的银离子敏感场效应晶体管（Ａｇ＋－ＩＳＦＥＴ）传感器。Ａｇ＋－ＩＳＦＥＴ传感器对银离子表现出了优良的能斯特响应，响应斜率为５８ ｍＶ／ｐＡｇ，同时该传感器对碱金属、破土金属及过渡金属离子有极高的选择性，在 １０－２～１０－５ ｍｏｌ／Ｌ范围内有良好的线性关系，检测限为 １０－５．５ｍｏｌ／Ｌ。

The thioether substituting calix[4]arene has been synthesized and tested as sensitive material in silver ion-sensitive field-effect transistor device based on polymeric matrix membrane. The device has shown a Nernstian response of 58 mV/decade, good selectivity coefficients toward alkali metals, alkali earth metals and transition metals interfering ions, linear response in the concentration range of 10-5 ~ 10-2 mol/L, and 10-5.4 mol/L for determination limit.