广东化工
廣東化工
엄동화공
GUANGDONG CHEMICAL INDUSTRY
2012年
7期
11-11,14
,共2页
田秀英%肖乔%翟文颖%刘有芹
田秀英%肖喬%翟文穎%劉有芹
전수영%초교%적문영%류유근
二氧化钛：碳纳米管%玻碳电极%过氧化氯
二氧化鈦：碳納米管%玻碳電極%過氧化氯
이양화태：탄납미관%파탄전겁%과양화록
titanium dioxide: carbon nanotubes: glassy carbon electrode: hydrogen peroxide
将二氧化钛水凝胶与多壁碳纳米管复合后修饰到玻碳电极表面制备H2O2生物传感器。采用循环伏安法对电极性能进行了表征。探讨了制备及测试最佳条件，用电流一时间曲线法检测样品中H2O2含量。该修饰电极具有响应速度快（〈0．5s）、灵敏和选择性好、还原峰电位（-0．28v）低等特点。线性范围4．0×10^-4-13．0mmol／L，检测限0．12μol／L。
將二氧化鈦水凝膠與多壁碳納米管複閤後脩飾到玻碳電極錶麵製備H2O2生物傳感器。採用循環伏安法對電極性能進行瞭錶徵。探討瞭製備及測試最佳條件，用電流一時間麯線法檢測樣品中H2O2含量。該脩飾電極具有響應速度快（〈0．5s）、靈敏和選擇性好、還原峰電位（-0．28v）低等特點。線性範圍4．0×10^-4-13．0mmol／L，檢測限0．12μol／L。
장이양화태수응효여다벽탄납미관복합후수식도파탄전겁표면제비H2O2생물전감기。채용순배복안법대전겁성능진행료표정。탐토료제비급측시최가조건，용전류일시간곡선법검측양품중H2O2함량。해수식전겁구유향응속도쾌（〈0．5s）、령민화선택성호、환원봉전위（-0．28v）저등특점。선성범위4．0×10^-4-13．0mmol／L，검측한0．12μol／L。
nano-titanium dioxide/multi-walled carbon nanotubes modified glassy carbon electrode （nano-TiO2/MWCNTs/GC） was successfully prepared by a surface coating method. The process of nano-TiO2/MWCNTs/GC preparation was investigated by cyclic voltammetry. The optimal conditions for the preparation and test of nano-TiO2/MWCNTs/GC were inquired. Hydrogen peroxide was detected by cyclic voltammetry and current vs time curve. The results indicated that the electrode has the merits of fast response （〈0.5 s）, good selectivity and low reduction peak potential-（-0.28 V）. The linear range of detection of H20： was 4.0×10^-4-13.0 mmol/L with a detection limit of 0.12 mol/L.
