Sensitive determination of food colorant erythrosine and other xanthene dyes by CE-LIF

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F05%3A00012915" target="_blank" >RIV/00216224:14310/05:00012915 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Sensitive determination of food colorant erythrosine and other xanthene dyes by CE-LIF

Original language description

In this work, sensitive determination of erythrosine and other xanthene dyes with absorption maxima above 500 nm based on fluorescent properties of the compounds has been suggested. The method involves extremely selective analysis of erythrosine (E127) in excess of other commonly used red food colorants. Concentration of the dye can be determined in presence/excess of other red dyes using capillary electrophoresis with laser induced fluorescence detection (CE-LIF) because of weak fluorescence of both synthetic xanthen and natural colorants in this region. LIF detector combined with a separation method can be used to detect extremely low amounts of analytes [6, 7] but the method is limited by analyte fluorescent properties, such as suitable excitation and emission wavelengths, quantum yield, etc. First, the fluorescent properties of the chosen colorants were determined using a spectrofluorimeter. Here, a home-built CE-LIF instrument [8] with solid state diode pumped frequency-doubled Nd

Czech name

Citlivé stanovení potravinového barviva erytrosinu a jiných xantenových barviv pomocí CE-LIF

Czech description

V pr&aacute;ci je pops&aacute;na monost citliveacute;ho fluorescenn&iacute;ho stanoven&iacute; erytrosinu a dal&iacute;ch xantenov&yacute;ch barviv s absorpn&iacute;m maximem nad 500nm po separaci kapil&aacute;rn&iacute; elektrofor&eacute;zou. Navren&aacute; metoda umouje citliv&eacute; stanoven&iacute; barviva E-127 v pebytku dal&iacute;ch erven&yacute;ch potravinov&yacute;ch barviv.

Type

D - Article in proceedings

CEP classification

CB - Analytical chemistry, separation

OECD FORD branch

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Project

<a href="/en/project/GA203%2F03%2F0515" target="_blank" >GA203/03/0515: Integrated genome and proteome analysis of therapeutically important bacteriophages by combination of electrophoresis and mass spectrometry</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2005

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Book of Abstracts - 11th International Symposium on Separation Sciences 2005

ISBN

80-7194-771-7

ISSN

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e-ISSN

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Number of pages

2

Pages from-to

268-269

Publisher name

Univerzita Pardubice

Place of publication

Pardubice

Event location

Pardubice

Event date

Jan 1, 2005

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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