Determination of Glycyrrhizin in liqueurs by on-line coupled capillary isotachophoresis with capillary zone electrophoresis

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22330%2F07%3A00019024" target="_blank" >RIV/60461373:22330/07:00019024 - 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

Determination of Glycyrrhizin in liqueurs by on-line coupled capillary isotachophoresis with capillary zone electrophoresis

Original language description

An on-line coupled capillary isotachophoresis-capillary zone electrophoresis method for the determination of glycyrrhizin in liqueurs is described. The optimised electrolyte system was 5mMHCl + 11mM_-aminocaproic acid + 0.05% hydroxyethylcellulose + 30%methanol (leasing electrolyte), 5mM caproic acid + 30% methanol (terminating electrolyte) and 20mM caproic acid + 10mM histidine + 0.1% hydroxyethylcellulose + 30% methanol (background electrolyte). Method characteristics, i.e., linearity (20-500 ng/ml),accuracy (recovery 99+/-4%), intra-assay repeatability (2%), intermediate repeatability (3.8%) and detection limit (8 ng/ml) were determined. Speed of analysis, low laboriousness, high sensitivity and low-running cost are the typical attributes of the capillary isotachophoresis-capillary zone electrophoresis method. Developed method was successfully applied to analysis of liqueurs with liquorice extract and some foods (sweets and food supplements) containing liquorice. Found levels of g

Czech name

Stanovení glycyrrhizinu v lékérech kombinací CITP a CZE

Czech description

An on-line coupled capillary isotachophoresis-capillary zone electrophoresis method for the determination of glycyrrhizin in liqueurs is described. The optimised electrolyte system was 5mMHCl + 11mM_-aminocaproic acid + 0.05% hydroxyethylcellulose + 30%methanol (leasing electrolyte), 5mM caproic acid + 30% methanol (terminating electrolyte) and 20mM caproic acid + 10mM histidine + 0.1% hydroxyethylcellulose + 30% methanol (background electrolyte). Method characteristics, i.e., linearity (20-500 ng/ml),accuracy (recovery 99+/-4%), intra-assay repeatability (2%), intermediate repeatability (3.8%) and detection limit (8 ng/ml) were determined. Speed of analysis, low laboriousness, high sensitivity and low-running cost are the typical attributes of the capillary isotachophoresis-capillary zone electrophoresis method. Developed method was successfully applied to analysis of liqueurs with liquorice extract and some foods (sweets and food supplements) containing liquorice. Found levels of g

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

GM - Food industry

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2007

Confidentiality

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

Name of the periodical

Journal of Chromatography A

ISSN

0021-9673

e-ISSN

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Volume of the periodical

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Issue of the periodical within the volume

1169

Country of publishing house

BE - BELGIUM

Number of pages

4

Pages from-to

239-242

UT code for WoS article

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EID of the result in the Scopus database

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