Electrolyte-assisted microemulsion breaking in vortex-agitated solidified floating organic drop microextraction for preconcentration and analysis of Sudan dyes in chili products

Abstract

For the extraction and determination of Sudan I–IV dyes in chili product samples, a simple and efficient liquid phase microextraction technique was developed.

New approach applying a pet fish air pump in liquid‐phase microextraction for the determination of Sudan dyes in food samples by HPLC

“…The result of sample preparation is discussed and shown in Supporting Information, Fig. S3, S4, and Table S1 .…”

A fluorescence switching sensor based on graphene quantum dots decorated with Hg2+ and hydrolyzed thioacetamide for highly Ag+-sensitive and selective detection

“…Each sample was spiked with three concentrations (2.0, 4.0, and 6.0 mM) of the standard solution of Ag + . Then, the relative percentage recoveries were calculated as follows: 31,32 % recovery…”

Preparation of Polyamidoamine Dendrimer Modified Magnetic Nanoparticles and Its Application for Reliable Measurement of Sudan Red Contaminants in Natural Waters at Parts-Per-Billion Levels

“…Thus, Sudan dyes are forbidden in foodstuff at any concentration level for any purpose based on the regulations of the Food Standards Agency and European Union ( Li et al, 2013a ). Nevertheless, they are still attractive as food additives to enhance the appearance of chili, curry, ketchup, and Curcuma due to their bright red-orange color, colorfastness, and low cost ( Sricharoen et al, 2017 ). There is, therefore, an urgent need to develop environmentally friendly, highly sensitive, effective, and practicable methods for monitoring Sudan Red pollutants.…”