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rdf:type
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Description
| - SPE, SPME and SBSE followed by solvent back extraction have been used for the extraction of free fatty acids (caproic - linolenic acids) from beer. Subsequent gas chromatographic analyses with flame ionization detection were used for the determination of these compounds. Medium-chain fatty acids (caproic-lauric acid) were determined as free acids, and long-chain fatty acids (myristic-linolenic acids) were determined as methyl esters after methylation by BF3-methanol 14%. Linearity, recovery, and repeatability of all methods have been determined and compared with the SPE method used as a reference. All three procedures provide similar working parameters characterized by high repeatability (2.3-16.3%) and good linearity (correlation coefficient ranging from 0.9919 to 0.9999). Results of beer analyses obtained by using these three methods were highly correlated.
- SPE, SPME and SBSE followed by solvent back extraction have been used for the extraction of free fatty acids (caproic - linolenic acids) from beer. Subsequent gas chromatographic analyses with flame ionization detection were used for the determination of these compounds. Medium-chain fatty acids (caproic-lauric acid) were determined as free acids, and long-chain fatty acids (myristic-linolenic acids) were determined as methyl esters after methylation by BF3-methanol 14%. Linearity, recovery, and repeatability of all methods have been determined and compared with the SPE method used as a reference. All three procedures provide similar working parameters characterized by high repeatability (2.3-16.3%) and good linearity (correlation coefficient ranging from 0.9919 to 0.9999). Results of beer analyses obtained by using these three methods were highly correlated. (en)
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Title
| - Analysis of free fatty acids in beer: Comparison of solid-phase extraction, solid phase microextraction, and stir bar sorptive extraction
- Analysis of free fatty acids in beer: Comparison of solid-phase extraction, solid phase microextraction, and stir bar sorptive extraction (en)
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skos:prefLabel
| - Analysis of free fatty acids in beer: Comparison of solid-phase extraction, solid phase microextraction, and stir bar sorptive extraction
- Analysis of free fatty acids in beer: Comparison of solid-phase extraction, solid phase microextraction, and stir bar sorptive extraction (en)
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skos:notation
| - RIV/60193697:_____/09:#0000514!RIV10-MSM-60193697
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
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http://linked.open...iv/cisloPeriodika
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/60193697:_____/09:#0000514
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - Solid-phase extraction; SPE; solid-phase microextraction; SPME; solvent back extraction; stir bar sorptive extraction; SBSE; free fatty acids; beer (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
| - US - Spojené státy americké
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
| - Journal of Agricultural and Food Chemistry
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...UplatneniVysledku
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http://linked.open...v/svazekPeriodika
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http://linked.open...iv/tvurceVysledku
| - Dvořák, Josef
- Horák, Tomáš
- Kellner, Vladimír
- Čejka, Pavel
- Hašková, Danuša
- Jurková, Marie
- Čulík, Jiří
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http://linked.open...ain/vavai/riv/wos
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http://linked.open...n/vavai/riv/zamer
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issn
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number of pages
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