Determination of banned sudan dyes in chili powder by capillary electrophoresis

Mejia, Eric; Ding, Yongsheng; Mora, María F.; Garcı́a, Carlos D.

doi:10.1016/j.foodchem.2006.06.038

Cited by 179 publications

(75 citation statements)

References 31 publications

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“…In the last 5 years several analytical methods based on GC [10], LC [11,12], or CE [13] have been reported in the literature. However, except when very expensive HPLC-MS/MS instrumentation is used [14,15], the direct detection of the target analytes in complex food matrices is a difficult task, and some sample clean-up treatment is mandatory before performing the analysis.…”

Section: Introductionmentioning

confidence: 99%

Determination of banned Sudan dyes in food samples by molecularly imprinted solid phase extraction‐high performance liquid chromatography

Baggiani¹,

Anfossi

Baravalle

et al. 2009

J of Separation Science

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Original PaperDetermination of banned Sudan dyes in food samples by molecularly imprinted solid phase extraction-high performance liquid chromatography A method for molecularly imprinted SPE of banned Sudan azo-dyes from food samples was investigated. The molecularly imprinted polymer was obtained by suspension polymerization using 1-(4-chlorophenyl)azonaphthalen-2-ol as the mimic template. The molecular recognition properties of imprinted beads were evaluated for use as a SPE sorbent, in order to develop a selective extraction protocol for the Sudan class of dyes. The optimized extraction protocol resulted in a reliable molecularly imprinted SPE (MISPE) method suitable for HPLC analysis. It was selective for the main analyte, Sudan I, and the related azo-dyes Sudan II, III, IV, Sudan Red B, and Sudan Red 7B, while the permitted azo-dyes Allura Red AC, Neococcin, and Sunset Yellow FCF were not extracted. The method was tested for Sudan I, II, III, and IV in five different food samples (hot chilli pepper, hot chilli tomato sauce, sausage, tomato sauce, and hard boiled egg yolk) at three concentration levels (15, 100, and 300 lg/g). It demonstrated itself to be insensitive to the presence of different complex matrices, precise, accurate, and with good recovery rates (85 -101%). The LOD and LOQ were satisfactory for most analytical determinations.

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Section: Introductionmentioning

confidence: 99%

Determination of banned Sudan dyes in food samples by molecularly imprinted solid phase extraction‐high performance liquid chromatography

Baggiani¹,

Anfossi

Baravalle

et al. 2009

J of Separation Science

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“…Mejia et al [17] used MEKC (borate buffer containing 20% ACN and 20 mM SDS) to resolve the four hydrophobic compounds. The method was applied to spiked chilli powders from a number of countries.…”

Section: Dyesmentioning

confidence: 99%

Determination of additives and organic contaminants in food by CE and CEC

Boyce¹

2007

Electrophoresis

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The application of CE to the analysis of additives and organic contaminants in food since 2001 has been reviewed. Additives included in the review are dyes, preservatives, antioxidants and sweeteners. Organic contaminants included in the review are pesticides, antibiotics and those produced during processing or cooking food. The review highlights the strategies and approaches adopted in making CE suitable for the determination of analytes at residue level and in complicated matrices.

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“…To date, many methods have been investigated for the determination of Sudan I, such as high-performance liquid chromatography (HPLC) [3][4][5][6][7][8][9], gas chromatography (GC) [10], capillary electrophoresis [11], immunoanalysis [12,13], chemiluminescence flow injection analysis [14], and plasmon resonance light scattering (PRLS) [15]. Most of these techniques exhibit high sensitivity and excellent selectivity, but some are also time-consuming, expensive, and unsuitable for in situ assays.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Detection of Sudan I Using a Multi-Walled Carbon Nanotube/Chitosan Composite Modified Glassy Carbon Electrode

Wu¹,

Tang²,

Guimarães³

et al. 2013

AJAC

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In this work, a simple and sensitive electrochemical method was developed to determine Sudan I by cyclic voltammetry and differential pulse voltammetry using a glassy carbon electrode modified with a chitosan/carbon nanotube composite. In cyclic voltammetry, Sudan I exhibited a well-defined oxidation peak located at 0.72 V at the multi-walled carbon nanotube (MWCNT)/chitosan-modified GCE. The determination conditions, including pH, scan rate, and chitosan: MWCNT mass ratio at the modified electrode, were optimized. Under the optimum experimental conditions, Sudan I could be linearly detected by differential pulse voltammetry with a detection limit of 3.0 × 10.

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Determination of banned sudan dyes in chili powder by capillary electrophoresis

Cited by 179 publications

References 31 publications

Determination of banned Sudan dyes in food samples by molecularly imprinted solid phase extraction‐high performance liquid chromatography

Determination of banned Sudan dyes in food samples by molecularly imprinted solid phase extraction‐high performance liquid chromatography

Determination of additives and organic contaminants in food by CE and CEC

Electrochemical Detection of Sudan I Using a Multi-Walled Carbon Nanotube/Chitosan Composite Modified Glassy Carbon Electrode

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