New trends in liquid chromatography and their utilization in analysis of beer and brewery raw materials. Part 2. Determination of cis/trans- isomers -iso- -acids in beer using Ultra Performance Liquid Chromatography

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60193697%3A_____%2F12%3A%230000695" target="_blank" >RIV/60193697:_____/12:#0000695 - isvavai.cz</a>

Result on the web

<a href="http://www.kvasnyprumysl.cz/en/journal/2012/4/" target="_blank" >http://www.kvasnyprumysl.cz/en/journal/2012/4/</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

New trends in liquid chromatography and their utilization in analysis of beer and brewery raw materials. Part 2. Determination of cis/trans- isomers -iso- -acids in beer using Ultra Performance Liquid Chromatography

Original language description

The Ultra High Performance Liquid Chromatography (UHPLC), which uses the principle of separation on sub-2 ?m particles, was tested for the separation and determination of steric forms of iso-?-acids in beer. The new UHPLC method was compared with the HPLC method, which is used for iso-?-acid determinations in RIBM. The comparison was performed with respect to the speed of analysis, separation efficiency, mobile phase consumption, and finally repeatability. The results of this study determined all the expected advantages of the UHPLC; while maintaining the resolution this method reduced analysis time 2.5 times compared to the previous HPLC. In addition, the UHPLC reduces the consumption of organic solvents 10 times. Apart from the economic benefits theUHPLC provides a high precision of the measurement, which was verified as repeatability of the UHPLC for both forms of iso-?-aids. Especially the trans-iso-?-isomers are significant indicators of beer aging during storage and transport. I

Czech name

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Czech description

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Type

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

CEP classification

CB - Analytical chemistry, separation

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2012

Confidentiality

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

Name of the periodical

Kvasný průmysl

ISSN

0023-5830

e-ISSN

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Volume of the periodical

58

Issue of the periodical within the volume

4

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

6

Pages from-to

94-99

UT code for WoS article

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EID of the result in the Scopus database

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