Hey, do you know a colorimetric method for determination of resorcinol title in medical device?
Regards
Stefano
you can see this article ''Colorimetric determination of resorcinol based on localized surface plasmon resonance of silver nanoparticles'' in this link:http://www.ncbi.nlm.nih.gov/pubmed/23016152 .Or you can use phthalic anhydride on heating with resorcinol gives a dye fluorescein. This dye in NaOH solution gives a yellowish red solution with green fluorescence .then you can make quantitative analysis of your product by UV-VIS or FT-IR techniques .
Resorcinol reacts with hydroxymethylfurfural (or furfural maybe) in conc HCl (4M is enought) to give a cherry red coloured adduct. It should be fine at rt, otherwise try heating for a short time. Can be monitored aroun 500 nm.
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