广州化工
廣州化工
엄주화공
GUANGZHOU CHEMICAL INDUSTRY AND TECHNOLOGY
2015年
11期
124-126
,共3页
尤文钰%包希梅%李景豪%杨铁金
尤文鈺%包希梅%李景豪%楊鐵金
우문옥%포희매%리경호%양철금
聚硫堇%石墨烯%壬基酚%化学修饰电极
聚硫堇%石墨烯%壬基酚%化學脩飾電極
취류근%석묵희%임기분%화학수식전겁
poly(thionine)%graphene%nonylphenol%chemical modified electrode
用电化学聚合法在玻碳电极上形成聚硫堇,再修饰石墨烯,制备出聚硫堇/石墨烯修饰电极。并采用循环伏安法和差分脉冲伏安法对壬基酚在此修饰电极上的电化学行为进行测定,对实验条件进行了优化,结果表明,在 pH 值为4.0的 B-R 缓冲溶液中,壬基酚在3.0×10-8~2.4×10-7 mol/ L 的浓度范围内与其氧化峰电流值呈现良好的线性关系,线性系数为0.9916,最低检测限为2.0×10-8 mol/ L(S/ N=3),可用于实际样品的检测。
用電化學聚閤法在玻碳電極上形成聚硫堇,再脩飾石墨烯,製備齣聚硫堇/石墨烯脩飾電極。併採用循環伏安法和差分脈遲伏安法對壬基酚在此脩飾電極上的電化學行為進行測定,對實驗條件進行瞭優化,結果錶明,在 pH 值為4.0的 B-R 緩遲溶液中,壬基酚在3.0×10-8~2.4×10-7 mol/ L 的濃度範圍內與其氧化峰電流值呈現良好的線性關繫,線性繫數為0.9916,最低檢測限為2.0×10-8 mol/ L(S/ N=3),可用于實際樣品的檢測。
용전화학취합법재파탄전겁상형성취류근,재수식석묵희,제비출취류근/석묵희수식전겁。병채용순배복안법화차분맥충복안법대임기분재차수식전겁상적전화학행위진행측정,대실험조건진행료우화,결과표명,재 pH 치위4.0적 B-R 완충용액중,임기분재3.0×10-8~2.4×10-7 mol/ L 적농도범위내여기양화봉전류치정현량호적선성관계,선성계수위0.9916,최저검측한위2.0×10-8 mol/ L(S/ N=3),가용우실제양품적검측。
An electrochemical sensor was developed for the detection of nonylphenol based on graphene modified the poly thionine (PTH) film that was electropolymerized on the glassy carbon. Electrochemical behaviors of nonylphenol on glassy carbon electrode modified by polymerized thionine were investigated by cyclic voltammetry and differential pulse voltammetric method and the experimental conditions were optimized. The results showed that under the conditions of pH=4. 0 B-R buffer solution, a good linear relationship between peak current and nonylphenol concentration was obtained in the range of 3. 0×10-8 ~2. 4×10-7 mol/ L with a correlation coefficient of 0. 9916, with a detection limit of 2. 0×10-8 mol/ L estimated at a signal to noise ratio of 3. The method has been applied to the analysis of nonylphenol in real samples.
