Selected synthetic food dyes (tartrazine, Ponceau 4R, Brilliant Blue, orange yellow, and azorubine) were isolated from liquid preparations (mouthwashes and beverages) by Solid Phase Extraction on aminopropyl-bonded silica with diluted aqueous sodium hydroxide as an eluent. The extraction step was followed by thin layer chromatography on silica gel 60 with chloroform-isopropanol-25% aq. ammonia ...

Synthetic food colours are used worldwide to avoid the loss of original colour in processed foods, as well as to make the products more attractive to consumers. Synthetic food colours are considered superior to natural food colours in terms of their colour value, uniformity, and applicability in various processed foods. Synthetic food colours have been authorized and regulated for use in food a...

A reversed-phase high performance liquid chromatographic method for the successful separation and determination of 6 synthetic food additives (aspartame, acesulfame potassium, benzoic acid, sodium saccharin, tartrazine and sunset yellow) was developed. A EclipseXDB-C18 column (250×4.6 mm I.D.; 5 μm) was used and the mobile phase contained methanol and 0.02 mol/L ammonium acetate (pH 6.0) (30:70...

Zero-valent iron/peroxymonosulfate (Fe0/PMS) has been considered as a promising approach for wastewater treatment. Anions and cations are widely present in have significant effects on the performance of Fe0/PMS system Thus, study, tartrazine was selected target model; SO42−, NO3−, HCO3−, Cl− were representative anions Ca2+, Cu2+, Mg2+, Mn2+ chosen cations. The effect these removal major radical...

Carbon nanodots (CDs) with superior fluorescence performance were obtained by hydrothermal method using tomatoes as raw materials. When the ultraviolet absorption band of tartrazine and spectrum CDs have complementary overlaps, fluorescent internal filter effect (IFE) occurred. Furthermore, degree quenching intensity has an excellent linear correlation concentration. And based on this principle...