About: Electrochemical analysis of natural solid organic dyes and pigments.

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About: Electrochemical analysis of natural solid organic dyes and pigments. Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Square-wave voltammetry of solid naphthoquinone, anthraquinone, and flavone dyes, carmine, cochineal red, indigo, and Prussian blue, was compared to microanalysis (sample consumption <1 mg) of traditional painting pigments and dyes without their preliminary dissolution. Electrochemical analysis was also performed after the samples' hydrolysis simultaneously with thin-layer chromatography. Anthraquinone-based pigments and Prussian blue are reversibly reduced, cochineal red and lac dyes are irreversibly reduced, flavones are mostly reversibly oxidized, dragon's blood is irreversibly oxidized and reduced, and indigo yields both reversible oxidation and reduction. The potential window of these reactions is about 1.4 V wide. This variability permits identification of the kind of pigment or dye, and directly distinguishes, for example, alizarin and purpurin; luteolin and quercetin; or indigo and Prussian blue. Square-wave voltammetry of solid naphthoquinone, anthraquinone, and flavone dyes, carmine, cochineal red, indigo, and Prussian blue, was compared to microanalysis (sample consumption <1 mg) of traditional painting pigments and dyes without their preliminary dissolution. Electrochemical analysis was also performed after the samples' hydrolysis simultaneously with thin-layer chromatography. Anthraquinone-based pigments and Prussian blue are reversibly reduced, cochineal red and lac dyes are irreversibly reduced, flavones are mostly reversibly oxidized, dragon's blood is irreversibly oxidized and reduced, and indigo yields both reversible oxidation and reduction. The potential window of these reactions is about 1.4 V wide. This variability permits identification of the kind of pigment or dye, and directly distinguishes, for example, alizarin and purpurin; luteolin and quercetin; or indigo and Prussian blue. (en)
Title	Electrochemical analysis of natural solid organic dyes and pigments. Electrochemical analysis of natural solid organic dyes and pigments. (en)
skos:prefLabel	Electrochemical analysis of natural solid organic dyes and pigments. Electrochemical analysis of natural solid organic dyes and pigments. (en)
skos:notation	RIV/61388980:_____/03:50033050!RIV/2004/MSM/A50004/N
http://linked.open.../vavai/riv/strany	706;713
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(LN00A028), Z(AV0Z4032918)
http://linked.open...iv/cisloPeriodika	10
http://linked.open...vai/riv/dodaniDat	2004
http://linked.open...aciTvurceVysledku	Grygar, Tomáš Hradil, David Kučková, Štěpánka
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav anorganické chemie AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	605613
http://linked.open...ai/riv/idVysledku	RIV/61388980:_____/03:50033050
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	voltammetry; microparticles; identification (en)
http://linked.open.../riv/klicoveSlovo	microparticles identification voltammetry
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[64D9ABDEDF5E]
http://linked.open...i/riv/nazevZdroje	Journal of Solid State Electrochemistry
http://linked.open...in/vavai/riv/obor	CA
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...ocetUcastnikuAkce	0 (xsd:int)
http://linked.open...nichUcastnikuAkce	0 (xsd:int)
http://linked.open...vavai/riv/projekt	New inorganic compounds and advanced materials
http://linked.open...UplatneniVysledku	2003
http://linked.open...v/svazekPeriodika	7
http://linked.open...iv/tvurceVysledku	Grygar, Tomáš Hradil, David Hradilová, J. Kučková, Štěpánka
http://linked.open...n/vavai/riv/zamer	Synthesis and structure of novel (inorganic) compounds, clusters and composites; mechanisms of conversion and transfer in systems involving inorganic substance
issn	1432-8488
number of pages	8 (xsd:int)

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