【摘要】 用β-环糊精修饰离子敏感场效应晶体管,研究了β-CD作为主体分子和一些客体分子的相互作用情况。麻黄碱与β-CD的相互作用,呈现良好的能斯特响应,斜率为58mV/pC,线性范围为1.0×10⁰～4.0×10^-5mol/L,适宜pH范围为4.5～8.0,检测下限为2.0×10^-5mol/L。用该传感器分析盐酸麻黄碱片剂含量,分析结果和药典方法相一致。更多还原

【Abstract】 The modified ion sensitive field effect transitors (ISFET) of β-cyclodcxtrin was made, and used to analyze cphedrine hydrochloride. The sensors exhibits Nerstian response for cphcdrmc cation with a slope of 58 mV/decadc over the concentration ranges of 1.0×106 -4.0×105lmol/L at pH 4. 5 - 8. 0. The detection limits is 2. 0×10-5mol/L. It has been used for the determination of ephedrine in medicinal tablet. The results obtained agree with the pharmacological method更多还原