Jing Ping, Zhang Xiaomei, Wu Zhenxing, Bao Lei, Xu Yanli, Liang Chengzhu, Cao Wenqing
Technology Center of Shandong Entry-Exit Inspection & Quarantine Bureau, No. 70 Qutangxia Road, Qingdao, Shandong 266002, China.
Technology Center of Shandong Entry-Exit Inspection & Quarantine Bureau, No. 70 Qutangxia Road, Qingdao, Shandong 266002, China.
Talanta. 2015 Aug 15;141:41-6. doi: 10.1016/j.talanta.2015.03.042. Epub 2015 Mar 28.
Simple and low cost sensor for the determination of bisphenol A (BPA) based on graphene-1-butyl-3-methylimidazolium hexafluorophosphate (BmimPF6) modified glassy carbon electrode was developed. It was an irreversible oxidation process of BPA on the modified electrode. Experimental conditions such as modified volume, pH, scan rate and accumulation time have been optimized. The modified electrode provided a considerable enhancement of BPA oxidation. The electrochemical response of BPA on this modified electrode was better than those on the graphene modified electrode and bare electrode. The detection limit of BPA was 8nM (S/N=3), the linear range was from 20nM to 2µM. The modified electrode has been employed for determination of milk and soda spiked BPA successfully.
基于石墨烯-1-丁基-3-甲基咪唑六氟磷酸盐（BmimPF6）修饰玻碳电极开发了一种用于测定双酚A（BPA）的简单低成本传感器。BPA在修饰电极上的氧化过程是不可逆的。对修饰体积、pH值、扫描速率和富集时间等实验条件进行了优化。修饰电极显著增强了BPA的氧化。BPA在该修饰电极上的电化学响应优于在石墨烯修饰电极和裸电极上的响应。BPA的检测限为8nM（S/N=3），线性范围为20nM至2µM。该修饰电极已成功用于测定添加了BPA的牛奶和苏打水。
