Voltammetric Behavior and Simultaneous Determination of the Antioxidants Propyl Gallate, Butylated Hydroxyanisole, and Butylated Hydroxytoluene in Acidic Acetonitrile-Water Medium Using PLS Calibration

Abstract

The voltammetric behavior of propyl gallate (PG), butylated hydroxyanisole (BHA) and butylated hydroxytoluene (BHT) has been studied at the glassy carbon electrode (static and rotating), in an acetonitrile-water medium using LS, sampled DC, DP and cyclic voltammetry. The use of a Britton-Robinson buffer (pH 2.8) containing 20 % of acetonitrile together with the sampled DC mode allows one to analyze binary and ternary mixtures of these antioxidants by applying a PLS type 1 multivariate approach. After optimization of the parameters of the chemometric procedure, the proposed method was validated with synthetic samples and applied for the determination of these antioxidants in different spiked samples of packet soup.

CUPRAC total antioxidant capacity assay of lipophilic antioxidants in combination with hydrophilic antioxidants using the macrocyclic oligosaccharide methyl β-cyclodextrin as the solubility enhancer

“…BHT was chosen as the model compound for all other lipophilic phenolics both in this test and in setting the aqueous solubility limit of lipophilic antioxidants, because it had the least solubility in water (i.e., 0.6-1.1 mg L À1 at 20-25°C) [36]. In addition, BHT losses have been reported during heating and filtration stages [37]. The data in Fig.…”

A Chemometric-Assisted Voltammetric Method for Simultaneous Determination of Four Antioxidants in Biodiesel Samples

“…Henao-Escobar et al used PLS to overcome the overlapped voltammetric signal of a quaternary mixture of cadaverine, histamine, putrescine, and tyramine. Other works applied PLS in the voltammetric determination of mixtures of the antioxidants under study in vegetable oil and food , samples.…”

Qualitative and quantitative electroanalysis of synthetic phenolic antioxidant mixtures in edible oils based on their acid–base properties

“…Besides, the chemometric analysis to determine mixtures of synthetic antioxidants has been used (Galeano Díaz, Guiberteau Cabanillas, Alexandre Franco, Salinas, Viré, 1998;Ni, Wang, Kokot, 2000). Both, the detection and quantification of extra-virgin olive oil adulteration with different edible oils using mid-infrared (IR) spectroscopy with chemometrics (Gurdeniz Ozen, 2009) and the adulteration of refined olive oil with refined hazelnut oil employing NMR spectroscopy and multivariate statistical analysis (Agiomyrgianaki, Petrakis, Dais, 2010) have been recently described.…”

“…Both, the detection and quantification of extra-virgin olive oil adulteration with different edible oils using mid-infrared (IR) spectroscopy with chemometrics (Gurdeniz Ozen, 2009) and the adulteration of refined olive oil with refined hazelnut oil employing NMR spectroscopy and multivariate statistical analysis (Agiomyrgianaki, Petrakis, Dais, 2010) have been recently described. On the other hand, the advantages of synthetic antioxidant electroanalytical determinations have been claimed (Agui, Reviejo, Yañez-Sedeño, Pingarrón, 1995;Ceballos Fernández, 2000a;Ceballos Fernández, 2000b;Galeano Díaz et al, 1998;McBride Evans, 1973). However, it is known that overlapping of electroanalytical responses in mixtures of synthetic phenolic antioxidants is sometimes strong, generally preventing their simultaneous quantification.…”