title: Electrochemical determination of glycoalkaloids using a carbon nanotubes-phenylboronic acid modified glassy carbon electrode.
abstract: A versatile strategy for electrochemical determination of glycoalkaloids (GAs) was developed by using a carbon nanotubes-phenylboronic acid (CNTs-PBA) modified glassy carbon electrode. PBA reacts with α-solanine and α-chaconine to form a cyclic ester, which could be utilized to detect GAs. This method allowed GA detection from 1 μM to 28 μM and the detection limit was 0.3 μM. Affinity interaction of GAs and immobilized PBA caused an essential change of the peak current. The CNT-PBA modified electrodes were sensitive for detection of GAs, and the peak current values were in quite good agreement with those measured by the sensors.
authors.affiliation: College of Horticulture and Landscape, Hunan Agriculture University, Changsha 410128, China. xiongxingyao@caas.cn.
authors.forename: Huiying
authors.initials: H
authors.lastname: Wang
authors.forename: Mingyue
authors.initials: M
authors.lastname: Liu
authors.forename: Xinxi
authors.initials: X
authors.lastname: Hu
authors.forename: Mei
authors.initials: M
authors.lastname: Li
authors.forename: Xingyao
authors.initials: X
authors.lastname: Xiong
mesh_terms: D000470:Alkaloids / Q000737:chemistry*; D001897:Boronic Acids / Q000737:chemistry*; D002244:Carbon / Q000737:chemistry*; D004563:Electrochemistry / Q000295:instrumentation* / Q000379:methods*; D004566:Electrodes; D037742:Nanotubes, Carbon / Q000737:chemistry*
chemical_list: D000470:Alkaloids; D001897:Boronic Acids; D037742:Nanotubes, Carbon; D002244:Carbon; C010686:benzeneboronic acid