Determination of synthetic phenolic antioxidants in edible oils using microvial insert large volume injection gas-chromatography

Cacho, J.I.; Campillo, Natalia; Viñas, Pilar; Hernández‐Córdoba, Manuel

doi:10.1016/j.foodchem.2016.01.026

Cited by 79 publications

(35 citation statements)

References 26 publications

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“…A centrifugation step at 3000 rpm for 2 min was applied to efficiently separate the two‐phases by means of breaking the fine droplets of the extracting solvent and edible oil emulsion .…”

Section: Resultsmentioning

confidence: 99%

Simultaneous determination of six synthetic phenolic antioxidants in edible oils using dispersive liquid–liquid microextraction followed by high‐performance liquid chromatography with diode array detection

Liu

Wang

et al. 2016

J of Separation Science

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A simple, rapid, organic-solvent- and sample-saving pretreatment technique, called dispersive liquid-liquid microextraction, was developed for the determination of six synthetic phenolic antioxidants from edible oils before high-performance liquid chromatography with diode array detection. The entire procedure was composed of a two-step microextraction and a centrifugal process and could be finished in about 5 min, only consuming only 25 mg of sample and 1 mL of the organic solvent for each extraction. The influences of several important parameters on the microextraction efficiency were thoroughly investigated. Recovery assays for oil samples were spiked at three concentration levels, 50, 100 and 200 mg/kg, and provided recoveries in the 86.3-102.5% range with a relative standard deviation below 3.5%. The intra-day and inter-day precisions for the analysis were less than 3.8%. The proposed method was successfully applied for the determination of synthetic phenolic antioxidants in different oil samples, and satisfactory results were obtained. Thus, the developed method represents a viable alternative for the quality control of synthetic phenolic antioxidant concentrations in edible oils.

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“…A centrifugation step at 3000 rpm for 2 min was applied to efficiently separate the two‐phases by means of breaking the fine droplets of the extracting solvent and edible oil emulsion .…”

Section: Resultsmentioning

confidence: 99%

Simultaneous determination of six synthetic phenolic antioxidants in edible oils using dispersive liquid–liquid microextraction followed by high‐performance liquid chromatography with diode array detection

Liu

Wang

et al. 2016

J of Separation Science

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show abstract

“…In the USA, Brazil and China, the maximum permitted level of TBHQ and BHA as food additives is limited to 200 mg kg −1 . Different analytical methods have been used for the sensitive and accurate detection of these compounds, such as high‐performance liquid chromatography (HPLC) , gas chromatography (GC) , gas chromatography‐mass spectrometry (GC‐MS) , and voltammetric methods .…”

Section: Introductionmentioning

confidence: 99%

Feasibility of a Nano‐Carbon Black Paste Electrode for Simultaneous Voltammetric Determination of Antioxidants in Food Samples and Biodiesel in the Presence of Surfactant

et al. 2020

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In this work, a simple and low‐cost method was developed for the simultaneous determination of the antioxidants tert‐butylhydroquinone (TBHQ) and butylated hydroxyanisole (BHA) in the presence of the cationic surfactant CPB by square wave voltammetry (SWV) technique using a carbon black paste electrode (CBPE). The performance of the method was investigated by varying parameters such as pH, electrolyte, and type and concentration of surfactant. Under the optimum conditions of 0.2 mol L−1 phosphate buffer (pH 7.0), 600.0 μmol L−1 of cetylpyridinium bromide surfactant and SWV operating parameters optimized through the Doehlert matrix, the method presented low limits of quantification for TBHQ and BHA (0.23 and 0.26 μmol L−1, respectively) and high precision in successive measurements. The proposed method was applied in mayonnaise, margarine and biodiesel and the accuracy of method was checked by the HPLC technique.

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“…For this purpose, spectrophotometric methods were first used [8][9][10]. Later chromatographic methods were developed, particularly high performance liquid chromatography (HPLC) [11][12][13][14][15][16], gas chromatography (GC) [16][17][18][19] and micellar electrokinetic capillary chromatography (MECC) [20,21]. The popularity of these techniques is linked to their high selectivity and sensitivity as well as to their low detection limit.…”

Section: Scheme 1 Chemical Structures Of Butylated Hydroxyanisole (Bmentioning

confidence: 99%

“…The popularity of these techniques is linked to their high selectivity and sensitivity as well as to their low detection limit. On the other hand, they have many drawbacks, such as expensive instrumentation, complicated and lengthy procedures of sample preparation which includes extraction of analytes [12][13][14][15][16][17][18][19][20][21].…”

Section: Scheme 1 Chemical Structures Of Butylated Hydroxyanisole (Bmentioning

confidence: 99%

Electrochemical Behavior of Butylated Hydroxyanisole and Butylated Hydroxytoluene in Acetic Acid Solutions and their Voltammetric Determination in Pharmaceutical Preparations

Jakubczyk¹

2018

International Journal of Electrochemical Science

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Electrochemical behavior of butylated hydroxyanisole (BHA) and butylated hydroxytoluene (BHT) was investigated by cyclic (CV), linear sweep (LSV) and differential pulse voltammetry (DPV) in glacial acetic acid solutions in order to develop a new method for determination of these synthetic antioxidants. A glassy carbon electrode (GC) and a carbon fiber disk microelectrode (CF) were used as working electrodes. Voltammograms recorded at these electrodes show well-defined single waves or peaks attributed to the oxidation of BHA and BHT which proceeds with an irreversible exchange of two electrons. A separation of about 0.24 V between the peak potentials recorded using DPV in their binary mixtures was obtained. Wide linearity ranges were achieved: 0.03-594.62, 0.18-921.37 mg L -1 and low limits of detection were 0.01, 0.06 mg L -1 for butylated hydroxyanisole and butylated hydroxytoluene, respectively. The results obtained indicate that DPV at CF microelectrode allows sensitive, precise, accurate, and fast determination of BHA and BHT, alone or in their mixture in pharmaceuticals without the need for their separation from the matrices, and can be an analytical alternative for existing methods.

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Determination of synthetic phenolic antioxidants in edible oils using microvial insert large volume injection gas-chromatography

Cited by 79 publications

References 26 publications

Simultaneous determination of six synthetic phenolic antioxidants in edible oils using dispersive liquid–liquid microextraction followed by high‐performance liquid chromatography with diode array detection

Simultaneous determination of six synthetic phenolic antioxidants in edible oils using dispersive liquid–liquid microextraction followed by high‐performance liquid chromatography with diode array detection

Feasibility of a Nano‐Carbon Black Paste Electrode for Simultaneous Voltammetric Determination of Antioxidants in Food Samples and Biodiesel in the Presence of Surfactant

Electrochemical Behavior of Butylated Hydroxyanisole and Butylated Hydroxytoluene in Acetic Acid Solutions and their Voltammetric Determination in Pharmaceutical Preparations

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