Development of miniaturized extraction method used for GC-NCD screening of non-volatile nitroso compounds in malt

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F18%3A10409571" target="_blank" >RIV/00216208:11310/18:10409571 - isvavai.cz</a>
Alternative codes found
RIV/60193697:_____/18:N0000068
Result on the web
<a href="https://web.natur.cuni.cz/analchem/isc-mac/" target="_blank" >https://web.natur.cuni.cz/analchem/isc-mac/</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Development of miniaturized extraction method used for GC-NCD screening of non-volatile nitroso compounds in malt
Original language description
The aim of this study was to develop a miniaturized extraction method for a fast screening of non-volatile nitroso compounds using gas chromatography with a nitroso specific chemiluminescence detection. According to a final methodology, the samples were prepared by extraction of grinded malt using a mixture of pyridine and acetonitrile in ratio 60:40 (v/v). To enhance volatility of the determined analytes, the two-step derivatization using hexamethyldisalazane and N,O-bis(trimethylsilyl)trifluoroacetamide was used. The total volume of the sample was 200 mu l and the preparation time after optimization was 80 min. The extraction method was connected to a classification method, which can divide chromatographic peaks into the groups of N-nitroso and C-nitroso compounds, and interfering substances. After application of the methods mentioned above to real malt samples, the specific chromatographic peaks of C-nitroso and N-nitroso compounds were selected.
Czech name
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Czech description
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Project
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Continuities
S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of the 14th International Students Conference “Modern Analytical Chemistry“
ISBN
978-80-7444-059-5
ISSN
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e-ISSN
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Number of pages
9
Pages from-to
105-113
Publisher name
Univerzita Karlova, Přírodovědecká fakulta
Place of publication
Praha 2
Event location
Prague
Event date
Sep 20, 2018
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
000495572500018

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