Electrochemical Sensing for Vitamins

Abstract

Vitamins are essential and necessary nutrients for the human body. Rapid and accurate quantification of their levels in various samples has attracted much attention. Compared with traditional analytical methods, electrochemical techniques, with the advantages of low cost, high sensitivity, flexible detection strategies, easy integration, and miniaturization, have gradually become the main tools in vitamin detection. In this paper, the advance of electrochemical sensing of vitamins in recent years is reviewed. Firstly, the basics of different vitamins are briefly introduced. Then, the commonly-used electrodes and electrochemical methods for vitamin electrochemical detection, as well as the specific implementation strategy and performance, are described in detail. The development of miniaturization devices, especially microfluidic and microsensor devices, is also presented. Finally, the challenges faced by the electrochemical detection of vitamins are discussed, and future development is prospected.

Electrochemical sensing of B-complex vitamins: current challenges and future prospects with microfluidic integration

“… 81 Many real samples contain complex matrices that can interfere with the electrochemical measurements of vitamins. Strategies such as sample pretreatment, 82 electrode surface modifications, 83 and the use of suitable mediators 84,85 have been explored to mitigate interference effects.…”

An o-Phenylenediamine and MWCNT-Based Electrochemical Sensor for the Detection of Triclosan by Cyclic Voltammetry

“…39 In this regard, molecularly imprinted polymer (MIP) has become popular due to its high selectivity towards the target analyte. 40 MIPs have been found to be successful for several analytes such as pesticides, [41][42][43] amino acids, [44][45][46] herbicides, 47,48 several proteins [49][50][51] and vitamins [52][53][54] etc. An MIP that can be synthesized from o-phenylenediamine (o-PD) which was found to be successful to detect triclosan with the limit of detection (LOD) of 8.0 × 10 −7 mol l −1 by Liu et al, 2009 55 There are several reports where Poly-o-Phenylenediamine (Poly-o-PD) was synthesized by chemical routes.…”