A Novel Electrochemical Sensing Strategy for Rapid and Ultrasensitive Detection of 6-Benzylaminopurine in Sprout Vegetables by Hollow Core/Shell-Structured CuO@SiO2 Microspheres

作者：Gan, Tian^*; Shi, Zhaoxia; Liu, Ning; Lv, Zhen; Sun, Junyong; Wang, Haibo

来源：Food Analytical Methods, 2015, 8(10): 2504-2514.

DOI：10.1007/s12161-015-0140-8

• 6-Benzylaminopurine
• CuO
• SiO2
• Core/shell
• Hollow
• Electrochemical sensing

A facile synthesis of hollow core/shell-structured CuO@SiO2 microspheres with uniform size and well-defined morphology is demonstrated. Electrochemical measurement results prove that the as synthesized CuO@SiO2 microspheres exhibit superior electrocatalytic activity toward the determination of 6-Benzylaminopurine (6-BA). Based on this, a simple and rapid electrochemical sensing strategy has been successfully constructed for the detection of 6-BA, which exhibits high sensitivity and good reproducibility. The peak current of 6-BA increases linearly with its concentration in the range of 50 nM similar to 100 mu M, and the detection limit is 2.6 nM. In addition, the practical analytical application of the sensing platform is assessed by determination of 6-BA in real sport vegetables with satisfactory results. Armed with the remarkable advantages, such as ease of use, low analyte consumption, inexpensive cost, and fast response time, the electrochemical sensing strategy may hold great potential for the in-field food safety monitoring.

• 出版日期2015-11
• 单位信阳师范学院