Preparative separation of two subsidiary colors of FD&C Yellow No. 5 (Tartrazine) using spiral high-speed counter-current chromatography

Specifications in the U.S. Code of Federal Regulations for the color additive FD&C Yellow No. 5 (Colour Index No. 19140) limit the level of the tetrasodium salt of 4-[(4',5-disulfo[1,1'-biphenyl]-2-yl)hydrazono]-4,5-dihydro-5-oxo-1-(4-sulfophenyl)-1H-pyrazole-3-carboxylic acid and that...

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Bibliographic Details
Main Authors: Weisz, Adrian, Ridge, Clark D., Roque, Jose A., Mazzola, Eugene P., Ito, Yoichiro
Format: Artigo
Language:Inglês
Published: 2014
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Article
Online Access:https://ncbi.nlm.nih.gov/pmc/articles/PMC4050977/
https://ncbi.nlm.nih.gov/pubmed/24755184
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1016/j.chroma.2014.03.059
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