检出限
电化学气体传感器
电极
电化学
化学
胶体金
材料科学
微分脉冲伏安法
水溶液
安培法
线性范围
循环伏安法
肺表面活性物质
色谱法
生物传感器
分析物
化学工程
作者
Nguyen Thi Hoang Lien,Le Quoc Hung,Nguyen Tien Hoang,Vu Thi Thu,Dau Thi Ngoc Nga,Pham Hai Yen,Pham Hong Phong,Vu Thi Thu Ha
出处
期刊:Journal of Automated Methods & Management in Chemistry
[Hindawi Limited]
日期:2020-12-29
卷期号:2020: 6693595-6693595
被引量:1
摘要
In the present work, we reported the simple way to fabricate an electrochemical sensing platform to detect Bisphenol A (BPA) using galvanostatic deposition of Au on a glassy carbon electrode covered by cetyltrimethylammonium bromide (CTAB). This material (CTAB) enhances the sensitivity of electrochemical sensors with respect to the detection of BPA. The electrochemical response of the modified GCE to BPA was investigated by cyclic voltammetry and differential pulse voltammetry. The results displayed a low detection limit (22 nm) and a linear range from 0.025 to 10 µm along side with high reproducibility (RSD = 4.9% for seven independent sensors). Importantly, the prepared sensors were selective enough against interferences with other pollutants in the same electrochemical window. Notably, the presented sensors have already proven their ability in detecting BPA in real plastic water drinking bottle samples with high accuracy (recovery range = 96.60%-102.82%) and it is in good agreement with fluorescence measurements.
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