摘要
通过循环伏安法(CV)、微分脉冲伏安法(DPV)和计时库仑法(CC)等研究了邻仲丁基苯酚(o-secbutyl phenol,osBP)在碳糊电极上的电化学行为.结果表明:在pH7.5的B-R缓冲液中,osBP在碳糊电极上发生的氧化反应是受吸附控制的不可逆等电子、质子转移过程,且氧化产物部分被还原.氧化峰电流与浓度在1.0~200μmol/L之间呈良好的线性关系,检出限(S/N=3)为0.54μmol/L.相对标准偏差(RSD)为3.2%(n=5),该法用于模拟环境水样分析,加标回收率为84.9%~98.6%.
The electrochemical behavior of o-sec-butyl phenol (osBP) was investigated oncarbon paste electrode by cyclic voltammetry, differential pulse voltammetry, chrono-coulometry and other electrochemical methods. The results showed that an adsorption-con-trolled process with electrons the same as protons transfer was occurred on the electrode. Itshows good linear relationship between oxidation peak current and the concentration of osBPin the range of 1.0-200 ~tmol/L by DPV. The detection limit (S/N=3) of analyticalmethod was 0.54 μmol/L. The relative standard deviation is 3.2% (n=5). The method hasbeen applied to the determination of osBP in spiked environmental samples with recovery of84. 9%-98. 6%.
出处
《福建师范大学学报(自然科学版)》
CAS
CSCD
北大核心
2012年第3期54-59,共6页
Journal of Fujian Normal University:Natural Science Edition
基金
福建省属高校科研专项基金(JK2010008)
福州大学食品安全分析与检测教育部重点实验室开放基金
福建师范大学本科生课外科技计划(BKL2010-026)
福建省大学生创新性实验计划项目(Fjnu2010-006)
关键词
邻仲丁基苯酚
碳糊电极
电化学行为
o-sec-butyl phenol
carbon paste electrode
electrochemical behavior