Determination of colorant matters mixtures in foods by solid-phase spectrophotometry

A novel conducting poly(p-aminobenzene sulphonic acid)-based electrochemical sensor for sensitive determination of Sudan I and its application for detection in food stuffs

“…Because of their bright and vivid red colour (Capith, Capith-Vallvey, Fernkdez, Orbe, & Avidad, 1996), low cost, and wide availability, Sudan dyes are also attractive as food colorants. However, Sudan dyes are categorised as class 3 carcinogens by the International Agency for Research on Cancer (IARC) and due to their carcinogenicity, they are banned in food in most countries including those in the European Union (EU) (European Commission Decision 2004/92/EC) (Chailapakul et al, 2008;Rebane et al, 2010).…”

Separation and determination of estrone in environmental and drinking water using molecularly imprinted solid phase extraction coupled with HPLC

“…Solid phase extraction (SPE) is recognized as a very common sample pre-treatment technique for enhancing the concentration of target analytes in biological and environmental samples [8]. SPE coupled with HPLC is an interesting method for determination of trace organic compounds, and combines the advantages of SPE and those of HPLC [9 -11].…”

High-resolution 1H Nuclear Magnetic Resonance spectrometry combined with chemometric treatment to identify adulteration of culinary spices with Sudan dyes

“…One of the most commonly used is High Performance Liquid Chromatography (HPLC) with UV detection (Cornet, Govaert, Moens, Van Loco, & Degroodt, 2006;Hussein & Biacs, 2005), but other detection systems have also been used, such as mass spectrometry (Tateo & Bononi, 2004;van Bruijnsvoort, Ottink, Jonker, & de Boer, 2004), fluorescence (Pielesz, Baranowska, Rybak, & Wochowicz, 2002) and chemiluminescence (Zhang, Zhang, & Sun, 2006). Other methods include reversed-phase liquid chromatography-electrospray-tandem mass spectrometry (Calbiani et al, 2004), capillary electrophoresis (Mejia, Ding, Mora, & Garcia, 2007), solid phase spectrophotometry (Capitán, Capitán-Vallvey, Fernández, de Orbe, & Avidad, 1996), a combination of UV-vis spectroscopy and multivariate techniques (Di Anibal, Odena, Ruisánchez, & Callao, 2009), plasmon resonance light scattering (Wu, Li, Huang, & Zhang, 2006) and electrochemical reduction at a glassy carbon electrode (Du, Han, Zhou, & Wu, 2007).…”