Results 21 to 30 of about 2,730 (221)

Thin-Layer Chromatography Combined with Surface-Enhanced Raman Spectroscopy for Simultaneous Detection of Four Sudan Dyes in Hot Pepper Products [PDF]

open access: yesShipin Kexue
Objective: To develop a TLC-SERS method for the simultaneous quantitative detection of four Sudan dyes in hot pepper products by the combined use of thin-layer chromatography (TLC) and surface-enhanced Raman spectroscopy (SERS).
CONG Yang, SU Rihui, YANG Shaoxin, YAN Jun
doaj   +1 more source

Pesticide Residues and Unauthorized Dyes as Adulteration Markers in Chilli Pepper and Tomato

open access: yesInternational Journal of Food Science, 2023
To assess the contamination of processed chilli pepper and tomatoes, a report over the past four decades since the establishment of the Rapid Alert System for Food and Feed (RASFF) was retrieved and analysed.
Edward Ken Essuman   +3 more
doaj   +1 more source

Colorimetric Detection of Sudan Based on the Aptamer and Cationic Compound Induced Gold Nanoparticles Aggregation

open access: yesShipin gongye ke-ji, 2023
In this study, a simple, economical and rapid colorimetric assay was developed for the detection of Sudan, in which Sudan-binding aptamer was used as recognition element, unmodified gold nanoparticles (AuNPs) as sensing signal, and poly ...
Changyong LIU   +4 more
doaj   +1 more source

Determination of Ten Kinds of Azo Dyes in Chinese Medicinal Materials by Ultra Performance Convergence Chromatography Tandem Mass Spectrometry [PDF]

open access: yesZhipu Xuebao, 2021
A method based on ultra performance convergence chromatography tandem mass spectrometry (UPC2-MS/MS) was established for the determination of ten kinds of azo dyes (ADs) in Chinese medicinal materials.
YANG Guang-yong   +3 more
doaj   +1 more source

SWATH-MS screening strategy for the determination of food dyes in spices by UHPLC-HRMS

open access: yesFood Chemistry: X, 2019
A multi-class wide-scope screening method for the detection and identification of artificial colours and illegal dyes in spices was developed for regulatory purposes.
Aurélie Périat   +2 more
doaj   +1 more source

Simple determination of Sudan dyes in fruit juice and spices by microfunnel-filter-based emulsification microextraction followed by high performance liquid chromatography [PDF]

open access: yesشیمی کاربردی روز, 2019
In this work, a rapid method termed as microfunnel-filter-based emulsification microextraction is coupled with high performance liquid chromatography for a simple determination of the banned Sudan dyes (I, II, and III) in fruit juice, spice, and water ...
mitra talaee   +4 more
doaj   +1 more source

Quality and safety evaluation of important parameters in palm oil from major cities in Ghana

open access: yesScientific African, 2021
Ghanaian consumers’ confidence and trust in palm oil have become weak over the past few years. This research seeks to evaluate the quality and safety (Sudan adulteration) parameters of palm oil samples from seven major cities in Ghana using a completely ...
Roseline MacArthur   +2 more
doaj   +1 more source

Chromatographic determination of 12 dyes in meat products by HPLC-UV-DIODE array detection

open access: yesMethodsX, 2019
The use of food dyes in meat is regulated by the current European and non-European legislation, due to several food safety concerns. A reliable method for the quali-quantitative determination of 12 food dyes (Amaranth, Ponceau 4R, Carmine, Ponceau SX ...
Marco Iammarino   +5 more
doaj   +1 more source

Detecting Dye-Contaminated Vegetables Using Low-Field NMR Relaxometry

open access: yesFoods, 2021
Dyeing vegetables with harmful compounds has become an alarming public health issue over the past few years. Excessive consumption of these dyed vegetables can cause severe health hazards, including cancer.
Sumaiya Shomaji   +7 more
doaj   +1 more source

Optical and Optoelectronic Studies of Binary and Ternary Films of Poly(L-Tryptophane), Poly(5-hydroxy-L-tryptophane), and P(TER-CO-TRI) Doped with Sudan Dye

open access: yesARO-The Scientific Journal of Koya University, 2023
In this work, the optical properties and optoelectronics parameters of binary and ternary composite films made of two electron acceptors, poly(L-Tryptophane) and poly(5-hydroxy-L-Tryptophane), with an electron donor, P(TER-CO-TRI), doped with Sudan dyes,
Barham K. Rahim   +4 more
doaj   +1 more source

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