湖南文理学院学报（自然科学版）
湖南文理學院學報（自然科學版）
호남문이학원학보（자연과학판）
JOURNAL OF HUNAN UNIVERSITY OF ARTS AND SCIENCE(SCIENCE AND TECHNOLOGY)
2014年
4期
25-27
,共3页
聚灿烂绿%薄膜修饰电极%盐酸利多卡因%测定
聚燦爛綠%薄膜脩飾電極%鹽痠利多卡因%測定
취찬란록%박막수식전겁%염산리다잡인%측정
poly(brilliant green)%film modified electrode%lidocaine hydrochloride%determination
利用循环伏安法,将灿烂绿(BG)电聚合于玻碳基体电极表面,成功地制备出对盐酸利多卡因(LH)具有良好电催化作用的聚灿烂绿薄膜修饰电极(PBGE).结果表明,在0.1 mol/L KNO3+0.05 mol/L PBS(pH =6.8)体系中, LH的浓度在6.9×10-6～1.4×10-4 mol/L范围内时,氧化峰电流与浓度呈现良好的线性关系,线性方程和线性相关系数分别为： i pa (μA)=-11.71-2.85×10-5 C LH (mol/L), R =0.9988,检测限可达3.5×10-6 mol/L.将该法用于盐酸利多卡因样品的测定,8次平行测定结果的相对标准偏差不大于4.9%,样品回收率范围为95.6%～102.9%,符合微量分析的要求.
利用循環伏安法,將燦爛綠(BG)電聚閤于玻碳基體電極錶麵,成功地製備齣對鹽痠利多卡因(LH)具有良好電催化作用的聚燦爛綠薄膜脩飾電極(PBGE).結果錶明,在0.1 mol/L KNO3+0.05 mol/L PBS(pH =6.8)體繫中, LH的濃度在6.9×10-6～1.4×10-4 mol/L範圍內時,氧化峰電流與濃度呈現良好的線性關繫,線性方程和線性相關繫數分彆為： i pa (μA)=-11.71-2.85×10-5 C LH (mol/L), R =0.9988,檢測限可達3.5×10-6 mol/L.將該法用于鹽痠利多卡因樣品的測定,8次平行測定結果的相對標準偏差不大于4.9%,樣品迴收率範圍為95.6%～102.9%,符閤微量分析的要求.
이용순배복안법,장찬란록(BG)전취합우파탄기체전겁표면,성공지제비출대염산리다잡인(LH)구유량호전최화작용적취찬란록박막수식전겁(PBGE).결과표명,재0.1 mol/L KNO3+0.05 mol/L PBS(pH =6.8)체계중, LH적농도재6.9×10-6～1.4×10-4 mol/L범위내시,양화봉전류여농도정현량호적선성관계,선성방정화선성상관계수분별위： i pa (μA)=-11.71-2.85×10-5 C LH (mol/L), R =0.9988,검측한가체3.5×10-6 mol/L.장해법용우염산리다잡인양품적측정,8차평행측정결과적상대표준편차불대우4.9%,양품회수솔범위위95.6%～102.9%,부합미량분석적요구.
BG was modified on glass carbon electrode surface by the cyclic voltammetry, and the poly (BG) film modified electrode (PBGE) was successfully prepared which had good electrocatalytic reaction on lidocaine hydrochloride. The results indicated that there was an irreversible deoxidation peak of LH in the system of 0.1 mol/L KNO3+0.05 mol/L PBS, good linearity was found between oxidization peak current and concentration of LH when concentration was 6.9 × 10-6~1.4 × 10-4 mol/L, the method detection limit is 3.5 × 10-6 mol/L. The linear equation was ipa(μA) = -11.71 -2.85 × 10-5 CLH (mol/L) and linear correlation coeffcient -0.998 8 can be obtained. The relative standard deviation (RSD) of 8 times was not more than 4.9% and the recovery rate range was 95.6%~102.9%. The PBGE can be used for quantitative determination of lidocaine hydrochloride in real samples.
