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Description
| - In this work, a recently developed extraction technique for sample preparation aiming the analysis of volatile and semi-volatile compounds named gas-diffusion microextraction (GDME) is applied in the chromatographic analysis of aldehydes in beer. Aldehydes?namely acetaldehyde (AA), methylpropanal (MA) and furfural (FA)?were simultaneously extracted and derivatized with 2,4-dinitrophenylhydrazine (DNPH), then the derivatives were separated and analyzed by high-performance liquid chromatography with spectrophotometric detection (HPLC?UV). The identity of the eluted compounds was confirmed by high-performance liquid chromatography?atmospheric pressure chemical ionization?mass-spectrometry detection in the negative ion mode (HPLC?APCI?MS). The developed methodology showed good repeatability (ca. 5%) and linearity as well as good limits of detection (AA?12.3, FA?1.5 and MA 5.4 μg L-1) and quantification (AA?41, FA?4.9 and MA 18 μg L-1); it also appears to be competitive in terms of speed and cost
- In this work, a recently developed extraction technique for sample preparation aiming the analysis of volatile and semi-volatile compounds named gas-diffusion microextraction (GDME) is applied in the chromatographic analysis of aldehydes in beer. Aldehydes?namely acetaldehyde (AA), methylpropanal (MA) and furfural (FA)?were simultaneously extracted and derivatized with 2,4-dinitrophenylhydrazine (DNPH), then the derivatives were separated and analyzed by high-performance liquid chromatography with spectrophotometric detection (HPLC?UV). The identity of the eluted compounds was confirmed by high-performance liquid chromatography?atmospheric pressure chemical ionization?mass-spectrometry detection in the negative ion mode (HPLC?APCI?MS). The developed methodology showed good repeatability (ca. 5%) and linearity as well as good limits of detection (AA?12.3, FA?1.5 and MA 5.4 μg L-1) and quantification (AA?41, FA?4.9 and MA 18 μg L-1); it also appears to be competitive in terms of speed and cost (en)
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Title
| - Analysis of aldehydes in beer by gas-diffusion microextraction: Characterization by high-performance liquid chromatography?diode-array detection?atmospheric pressure chemical ionization?mass spectrometry
- Analysis of aldehydes in beer by gas-diffusion microextraction: Characterization by high-performance liquid chromatography?diode-array detection?atmospheric pressure chemical ionization?mass spectrometry (en)
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skos:prefLabel
| - Analysis of aldehydes in beer by gas-diffusion microextraction: Characterization by high-performance liquid chromatography?diode-array detection?atmospheric pressure chemical ionization?mass spectrometry
- Analysis of aldehydes in beer by gas-diffusion microextraction: Characterization by high-performance liquid chromatography?diode-array detection?atmospheric pressure chemical ionization?mass spectrometry (en)
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skos:notation
| - RIV/60461373:22340/10:00023379!RIV11-MSM-22340___
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
| - P(1M0570), Z(MSM6046137305)
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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/60461373:22340/10:00023379
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - Gas-diffusion microextraction (GDME); beer; aldehydes; acetaldehyde; furfural; methylpropanal (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
| - Journal of Chromatography A
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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...vavai/riv/projekt
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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
| - Dostálek, Pavel
- Sýkora, David
- Rodrigues, J.
- Barros, A.
- Goncalves, L.
- Magalhaes, P.
- Pacheco, J.
- Valente, I.
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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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http://localhost/t...ganizacniJednotka
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