Results 11 to 20 of about 185,175 (195)
Novel near-infrared absorbing dyes [PDF]
, 1990 New near-infrared absorbing donor-acceptor chromophores have been investigated by varying the electron donating and accepting strength of the two halves of the molecule within wide limits. The dihydroperimidine, perimidine, Michler's ethylene and 1-decyl-
Corns, Stephen Nigel
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ENVIRONMENTAL EFFECT OF SUDAN I-IV: ADSORPTION BEHAVIORS AND POTENTIAL RISK ON SOIL [PDF]
Acta Scientifica Malaysia, 2017 Sudan dyes (Table 1) [1], a class of synthetic azo dyes and classified as category 3 carcinogens by the International Agency for Research on Cancer[2], have been received considerable attention all over the world, especially in the past decade, which are
Yong, Qixing
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Nanomaterials, 2022 Sudan dyes are strictly prohibited from being added to edible products as carcinogens and tetracycline hydrochloride (TC) remaining in animal-derived food may cause harm to the human body.
Min Zhang +5 more
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CyTA - Journal of Food, 2021 A novel, rapid, and reliable ultra-high performance supercritical fluid chromatography (UHPSFC) method was developed to correctly separate and quantitatively determine Sudan dyes in chilli products.
Xuyuan Nie +7 more
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Frontiers in Chemistry, 2021 The health threat from Sudan red dyes has been the subject of much attention in recent years and is crucial to design and establish reliable measurement technologies.
Yalin Wu +12 more
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Optical screening for presence of banned Sudan III and Sudan IV dyes in edible palm oils [PDF]
Food Additives & Contaminants: Part A, 2020 Due to the proven carcinogenicity of Sudan III and IV dyes, they are considered global public health issues. They are banned in all forms as food colourants. We propose the monitoring of simple and easy-to-measure optical properties of palm oils, such as the refractive indices and spectrophotometric properties, as efficient indicators to detect ...
Sampson Saj Andoh +7 more
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Jurnal Serambi Engineering, 2023 The high sales of cosmetic products in the world are not directly proportional to the good quality of cosmetic products. The The Food and Drug Administration (BPOM) declared, from October 2021 to August 2022 as many as 1 million pieces of cosmetic ...
Elanda Fikri, Yura Witsqa Firmansyah
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Determination of banned dyes in spices by liquid chromatography-mass spectrometry
Czech Journal of Food Sciences, 2007 A simple and rapid multiresidue method for the determination of nine banned synthetic dyes in various spices has been developed. Reversed phase HPLC coupled with mass spectrometry (tandem in time-ion trap mass analyser) was employed for the examination ...
Petr Botek, Jan Poustka, Jana Hajšlová
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Journal of Analytical Methods in Chemistry, 2021 Analytical techniques for analyte quantification are often complex, time-consuming, and costly. Further, samples must be carefully prepared to make them suitable for each analytical technique, thus increasing complexity and cost and often requiring toxic
Thi Chuyen Pham +3 more
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New extended methine dyes for application in laser technology [PDF]
, 1993 Based on the known reverse saturable absorption properties of certain coumarin and long chain polymethine dyes, the synthesis of new related structures was undertaken in order to examine the relationships between structure and RSA activity. It was hoped
Millar, Valerie
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