摘要
本文将离子敏感场效应晶体管（ＩＳＦＥＴ）与药物敏感膜相结合，研制成一种药物敏感场效应晶体管传感器（ＤｒｕｇＦＥＴ）。用四苯硼钠为电活性物质，邻苯二甲酸二辛酯为增塑剂，制成ｐｖｃ膜，对烟碱的线性范围为１．０×１０－２～２．０×１０－５ｍｏｌ／Ｌ，斜率为５７．５ｍｖ／ｐｃ，适宜ｐＨ范围为５．５～８．０，检出限为１．０×１０－６ｍｏｌ／Ｌ。用该传感器分析烟草中烟碱的含量，结果和分光光度法相一致。
This paper is about the development of a kind of DrugFET sensor of nicotine by the combination of ISFET and drug sensitive membranes. The paper has described a NicotineFET, which is based on tetraphenyl borate as electric active materials ,DCP as plasticizer and pvc as base polymer. Its exhibits Nernst respone for nicotine with a slope 57 5mv/decade over the concentration ranges of 1 0×10 -2 ～2.0×10 -5 mol/L at pH 5 5～8 0. The detection limit is 1 0×10 -6 mol/L. It has been used for the determination of nicotine in tobacco. The result agrees with spectroscopic.
出处
《延安大学学报（自然科学版）》
1998年第3期59-62,共4页
Journal of Yan'an University：Natural Science Edition
基金
陕西省教委专项科研基金
