First Order Derivative Voltammetry on the in situ Surfactant Modified Electrode for Naringin Quantification

Abstract

Carboxylated multi‐walled carbon nanotubes based glassy carbon electrodes (MWNT‐COOH/GCE) modified in situ with surfactants (sodium dodecyl sulfate (SDS), cetylpyridinium bromide (CPB) and Triton X100) have been tested for the naringin determination. The effect of surfactant nature and concentration on the voltammetric characteristics of naringin has been evaluated. Anionic 100 μM SDS shows the highest 2.7‐fold increase of the oxidation currents in comparison to MWNT‐COOH/GCE. The irreversible electrooxidation of naringin is surface‐controlled process with the one electron and one proton transfer. Under conditions of first order derivative linear sweep voltammetry in Britton‐Robinson buffer (BRB) pH 8.0, the analytical ranges of 0.75–25 and 25–100 μM with the LOD and LOQ of 0.14 and 0.46 μM, respectively, have been obtained. The electrode response is selective in the presence of ascorbic, gallic and p‐coumaric acids as well as quercetin, catechin and rutin. The method has been applied for the naringin quantification in grapefruit juices.

Recent advances in applications of surfactant‐based voltammetric sensors

“…Furthermore, a GCE modified with carboxylated MWCNTs has been tested for the determination of naringin in the presence of SDS, CPB, and TX‐100 surfactants. With SDS (100 μM), a 2.7‐fold increase in the oxidation current was obtained (Ziyatdinova, Yakupova, et al, 2019). Additionally, a GCE modified with co‐immobilized MWCNT‐COOH and various surfactants has been proposed for the electro‐oxidiation of thymol.…”

“…The combination of surfactants with carbon nanomaterials as a modifier is of interest from the practical point of view. On the one hand, surfactants are used as an assistant to disperse the intended nanomaterial in aqueous media (Ziyatdinova, Romashkina, et al, 2018; Ziyatdinova, Yakupova, et al, 2019). On the other hand, surfactants may show an electrocatalytic effect for the electrode reaction, which intensifies the analytical response of the modified electrode toward the target in favor of better sensitivity and selectivity (Ziyatdinova et al, 2015).…”

“…In this case, the selectivity of the sensor is generally perfect because the analyte can be easily detected with a voltammetric peak potential. Furthermore, voltammetry with modified electrodes has been widely used in voltammetric sensors to ensure high analytical and operational characteristics for the determination of analytes (Goyal et al, 2007, 2008; Jain, Gupta, et al, 2010; Jain, Rather, & Dwivedi, 2010; Ziyatdinova, Yakupova, et al, 2019).…”

“…Such examples are the higher transfer rate of electrons and changes in the charge transfer coefficients and redox potential, enhancing their potential to amplify signals (Brahman et al, 2012; Dar et al, 2012; Rusling, 1991; Wang et al, 2000). Furthermore, surfactants have a wide range of properties, which renders them a viable option for monitoring the selective features of sensor response to the analytes; this is owing to the ability of surfactants to alter the electrode surface in terms of hydrophilic, lipophilic, and electrostatic features (Ziyatdinova, Yakupova, et al, 2019).…”

Advances in Derivative Voltammetry - A Search for Diagnostic Criteria of Several Electrochemical Reaction Mechanisms

“…More recent applications for derivative techniques have also been reported for analysis of oxidation of methanol [21], for improved quantification of ill-defined peaks in determining Pt in water and sediments [35], for analysis of alloxan [36], and for quantitation of naringin, an antioxidant [37].…”