西华师范大学学报：自然科学版
西華師範大學學報：自然科學版
서화사범대학학보：자연과학판
Journal of China West Normal University:Natural Science Edition
2011年
4期
344-347,384
,共5页
多壁碳纳米管%茜索红%修饰电极%鸟嘌呤
多壁碳納米管%茜索紅%脩飾電極%鳥嘌呤
다벽탄납미관%천색홍%수식전겁%조표령
multi-wall carbon nanotube%alizarin%modified electrode%guanine
用循环伏安法制备了多壁碳纳米管-聚茜素红修饰电极．用循环伏安法和线性扫描伏安法研究了鸟嘌呤在多壁碳纳米管-聚茜素红修饰电极上的电化学行为．结果表明：鸟嘌呤在修饰电极上是不可逆氧化过程，其氧化峰电流与浓度在5×10^-6-3×10^-4mol／L范围内有良好的线性关系：Ip（A）=-1．09×10^-9-1．33×10^-4c（mol／L），R=0．9983，其检出限为5×10^-6mol／L，样品回收率为：97．44％-104．8％．
用循環伏安法製備瞭多壁碳納米管-聚茜素紅脩飾電極．用循環伏安法和線性掃描伏安法研究瞭鳥嘌呤在多壁碳納米管-聚茜素紅脩飾電極上的電化學行為．結果錶明：鳥嘌呤在脩飾電極上是不可逆氧化過程，其氧化峰電流與濃度在5×10^-6-3×10^-4mol／L範圍內有良好的線性關繫：Ip（A）=-1．09×10^-9-1．33×10^-4c（mol／L），R=0．9983，其檢齣限為5×10^-6mol／L，樣品迴收率為：97．44％-104．8％．
용순배복안법제비료다벽탄납미관-취천소홍수식전겁．용순배복안법화선성소묘복안법연구료조표령재다벽탄납미관-취천소홍수식전겁상적전화학행위．결과표명：조표령재수식전겁상시불가역양화과정，기양화봉전류여농도재5×10^-6-3×10^-4mol／L범위내유량호적선성관계：Ip（A）=-1．09×10^-9-1．33×10^-4c（mol／L），R=0．9983，기검출한위5×10^-6mol／L，양품회수솔위：97．44％-104．8％．
The electrode was modified by multi- walled carbon nanotubes -poly alizarin. And electrochemical be havior of Guanine on modified electrode was studied with cyclic voltammetry and linear sweep voltammetry. The was diseovered result indicated that an irreversible oxidation process appeared on modified electrode. Good linearity of Guanine when concentration was in 5 × 10^-6 -3 × 10^-4mol/L, Ip（A） = - 1.09 × 10^-9 - 1.33 × 10^-4c（mol/L） , relative coefficient R = 0. 9983, and detection limit was 5 × 10^-6mol/L. The recovery was 97.44% - 104.8%.
