PVP-石墨烯修饰的玻碳电极对沙丁胺醇的检测  

Electrochemical determination of salbutamol on the glassy carbon electrode modified with PVP-grapheme

作　　者：石雷[1] 孙淑红[1] 武玲凤 王培龙[2] 苏晓鸥[2] 

机构地区：[1]辽宁师范大学化学化工学院,辽宁大连116029 [2]中国农业科学院农业质量标准与检测技术研究所,北京100081

出　　处：《辽宁师范大学学报（自然科学版）》2016年第2期223-229,共7页Journal of Liaoning Normal University:Natural Science Edition

基　　金：农业研究专项资金项目(201203088);国家科学技术专项资金项目(2011BAD26B0405)

摘　　要：以PVP分散的石墨烯修饰玻碳电极（PVP-RGO/GCE）制备检测沙丁胺醇（SAL）的电化学传感器,并采用循环伏安法（CV）及差分脉冲伏安法（DPV）对传感器进行了表征和研究.结果表明：在PVP与石墨烯质量比为2.0∶1.0、超声温度为30℃、超声时间为20h的最优条件下,该传感器灵敏度高、稳定性好,其线性范围为（500×10-9~500×10-7）mol/L,检出限为500×10-9 mol/L.将该传感器用于猪肉样品的检测,回收率为91.5%~109.0%.An electrochemical sensor for the detection of salbutamol was prepared, where the glassy carbon electrode was modified by polyvinyl pyrrolidone-dispersed graphene. The sensor was charac- terized and studied by CV and DPV. The results indicated that the sensor exhibited a high sensitivity and good stability with the linear range of （5.00 × 10 ^-9 5.00 × 10^-7） mol/L and the detection limit of 5.00×10^- 9 mol/Lunder the optimum conditions of the mass ratio of PVP and RGO of 2. 0 ： 1.0, ultrasonic time of 2.0 h and ultrasonic temperature of 30 ℃. The sensor was applied to the determi- nation of salbutamol in the sample of the pork with the recovery between 91.5%-109.0%.

关 键 词：沙丁胺醇 电化学传感器 石墨烯 PVP 玻碳电极 

分 类 号：O657.1[理学—分析化学]