Kvasny Prum. 2011; 57(9): 326-329 | DOI: 10.18832/kp2011036

MEPS and it's using in sample preparation.Peer-reviewed article

Tomáš HORÁK, Jiří ČULÍK, Marie JURKOVÁ, Pavel ČEJKA, Vladimír KELLNER, Josef DVOŘÁK, Danuša HAŠKOVÁ
Výzkumný ústav pivovarský a sladařský, a. s., Pivovarský ústav Praha, Lípová 15, 120 44 Praha 2

Gas chromatography plays the significant role in the determination of beer flavours. Sample preparation procedures for extraction,
concentration or clean-up are often necessary before gas chromatographic determination. A lot of sample preparation techniques have
been introduced in the past two decades and these procedures can successfully replace classical methods. These procedures include
off-line and on-line methods and they are based on exhaustive extraction as well as equilibrium techniques. This study is focused on
new sample preparation method called MEPS (Microextraction by Packed Sorbent) and its possible use in brewing analytics. Gas chromatography plays the significant role in the determination of beer flavours. Sample preparation procedures for extraction,
concentration or clean-up are often necessary before gas chromatographic determination. A lot of sample preparation techniques have
been introduced in the past two decades and these procedures can successfully replace classical methods. These procedures include
off-line and on-line methods and they are based on exhaustive extraction as well as equilibrium techniques. This study is focused on
new sample preparation method called MEPS (Microextraction by Packed Sorbent) and its possible use in brewing analytics.

Keywords: MEPS, gas chromatography, sample preparation, beer, brewing analytics

Received: June 20, 2011; Accepted: August 4, 2011; Published: September 1, 2011 

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