淮北师范大学学报（自然科学版）
淮北師範大學學報（自然科學版）
회북사범대학학보（자연과학판）
Journal of Huaibei Normal University (Natural Science)
2015年
3期
49-52
,共4页
铜%对氨基苯甲酸%对苯二酚%循环伏安法%修饰电极
銅%對氨基苯甲痠%對苯二酚%循環伏安法%脩飾電極
동%대안기분갑산%대분이분%순배복안법%수식전겁
copper%para aminobenzoic acid%hydroquinone%cyclic voltammetry%modified electrode
用循环伏安法制备铜/聚对氨基苯甲酸复合修饰电极，并研究对苯二酚在该修饰电极上的电化学行为.在pH3.5磷酸盐缓冲溶液中，扫描速率为240 mV/s时，对苯二酚会在铜掺杂修饰电极上产生一对清晰的氧化还原峰，峰电位分别为Epa=0.376 V，Epa=0.293 V.对苯二酚氧化峰电流与其浓度在3.0×10-6～1.0×10-3 mol/L范围内呈良好的线性关系，检出限为8.0×10-7 mol/L.基于对苯二酚在修饰电极上的电化学特性，为我们建立一种新的测定方法.对对苯二酚样品的测定分析，结果满意.
用循環伏安法製備銅/聚對氨基苯甲痠複閤脩飾電極，併研究對苯二酚在該脩飾電極上的電化學行為.在pH3.5燐痠鹽緩遲溶液中，掃描速率為240 mV/s時，對苯二酚會在銅摻雜脩飾電極上產生一對清晰的氧化還原峰，峰電位分彆為Epa=0.376 V，Epa=0.293 V.對苯二酚氧化峰電流與其濃度在3.0×10-6～1.0×10-3 mol/L範圍內呈良好的線性關繫，檢齣限為8.0×10-7 mol/L.基于對苯二酚在脩飾電極上的電化學特性，為我們建立一種新的測定方法.對對苯二酚樣品的測定分析，結果滿意.
용순배복안법제비동/취대안기분갑산복합수식전겁，병연구대분이분재해수식전겁상적전화학행위.재pH3.5린산염완충용액중，소묘속솔위240 mV/s시，대분이분회재동참잡수식전겁상산생일대청석적양화환원봉，봉전위분별위Epa=0.376 V，Epa=0.293 V.대분이분양화봉전류여기농도재3.0×10-6～1.0×10-3 mol/L범위내정량호적선성관계，검출한위8.0×10-7 mol/L.기우대분이분재수식전겁상적전화학특성，위아문건립일충신적측정방법.대대분이분양품적측정분석，결과만의.
The copper and poly para aminobenzoic acid compoud modified electrode was prepared by the cy?clic voltammetry. And the electrochemical behavior of hydroquinone on the modified electrode was studied. In pH3.5 phosphate buffer solution,with the scanning rate of 240 mV/s,hydroquinone produced a clear pair of redox peaks,and the peak potential were Epa= 0.376 V and Epc = 0.293 V,respectively. Hydroquinone oxi?dation peak current and concentration in the range of 3.0 × 10-6~1.0 × 10-3 mol/L had a good linear relation?ship,and the detection limit was 8.0×10-7 mol/L. Based on the study,a new method was established for de?termination of hydroquinone.And the method was used for the determination of hydroquinone samples with satisfactory results.
