化学传感器
化學傳感器
화학전감기
CHEMICAL SENSORS
2014年
1期
51-56
,共6页
多壁碳纳米管%电化学传感器%邻苯二酚%对苯二酚%对甲苯酚
多壁碳納米管%電化學傳感器%鄰苯二酚%對苯二酚%對甲苯酚
다벽탄납미관%전화학전감기%린분이분%대분이분%대갑분분
multi-walled carbon nanotubes%electrochemical sensor%catechol%hydroquinone%p-cresol
该文利用多壁碳纳米管(MWCNTs)和聚(2-乙酰基-5-溴噻吩)复合纳米材料修饰电极,用于同时检测对苯二酚(HQ)、邻苯二酚(CC)和对甲苯酚(PC)。通过循环伏安法(CV),示差脉冲伏安法(DPV)和透射电镜(TEM)表征了该复合纳米材料的电化学性能和表面形貌。结果表明该电极对HQ、CC和PC具有较高的灵敏度和选择性。DPV峰电流与HQ、CC和PC的浓度在1.0×10-5~8.0×10-4 mol/L,5.0×10-6~5.5×10-4 mol/L和5.0×10-6~7.5×10-4 mol/L范围内分别呈良好的线性关系,且检测限分别为3.0×10-6 mol/L,1.7×10-6 mol/L和2.0×10-6 mol/L。
該文利用多壁碳納米管(MWCNTs)和聚(2-乙酰基-5-溴噻吩)複閤納米材料脩飾電極,用于同時檢測對苯二酚(HQ)、鄰苯二酚(CC)和對甲苯酚(PC)。通過循環伏安法(CV),示差脈遲伏安法(DPV)和透射電鏡(TEM)錶徵瞭該複閤納米材料的電化學性能和錶麵形貌。結果錶明該電極對HQ、CC和PC具有較高的靈敏度和選擇性。DPV峰電流與HQ、CC和PC的濃度在1.0×10-5~8.0×10-4 mol/L,5.0×10-6~5.5×10-4 mol/L和5.0×10-6~7.5×10-4 mol/L範圍內分彆呈良好的線性關繫,且檢測限分彆為3.0×10-6 mol/L,1.7×10-6 mol/L和2.0×10-6 mol/L。
해문이용다벽탄납미관(MWCNTs)화취(2-을선기-5-추새분)복합납미재료수식전겁,용우동시검측대분이분(HQ)、린분이분(CC)화대갑분분(PC)。통과순배복안법(CV),시차맥충복안법(DPV)화투사전경(TEM)표정료해복합납미재료적전화학성능화표면형모。결과표명해전겁대HQ、CC화PC구유교고적령민도화선택성。DPV봉전류여HQ、CC화PC적농도재1.0×10-5~8.0×10-4 mol/L,5.0×10-6~5.5×10-4 mol/L화5.0×10-6~7.5×10-4 mol/L범위내분별정량호적선성관계,차검측한분별위3.0×10-6 mol/L,1.7×10-6 mol/L화2.0×10-6 mol/L。
Multi-walled carbon nanotubes (MWCNTs) and poly(2-acetyl-5-bromothiophene) were used to modify glassy carbon electrode for the simultaneous determination of hydroquinone (HQ), catechol (CC), and p-cresol (PC). The modified electrode was characterized by differential pulse voltammetric (DPV), cyclic voltammetry (CV) and transmission electron microscope (TEM). The modified electrode showed a high sensibility and selectivity to the determination of HQ、CC and PC with the linear ranges of 1.0×10-5~8.0×10-4 mol/L, 5.0×10-6~5.5×10-4 mol/L and 5.0 ×10-6~7.5 ×10-4 mol/L, respectively. The detection limits were 3.0 ×10-6 mol/L, 1.7 ×10-6 mol/L and 2.0 ×10-6 mol/L, respectively.