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rdf:type
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Description
| - A method for the determination of chloroacetic acid, bromoacetic acid and iodoacetic acid in beer is described. Solid phase extraction for the sample clean-up was used. Several SPE columns were tested. Then the analytes were derivatized using BF3/methanol as methylation agent and determined by capillary gas chromatographic analysis coupled with electron capture detector. Recovery yields are nearly 100% for all monohaloacetic acids. Detection limits are lower than 0.1, 0.05 and 0.01 mg/dm3 for chloroacetic acid, bromoacetic acid and iodoacetic acid, respectively. This procedure is suitable for routine analyses of haloacetic acids.
- A method for the determination of chloroacetic acid, bromoacetic acid and iodoacetic acid in beer is described. Solid phase extraction for the sample clean-up was used. Several SPE columns were tested. Then the analytes were derivatized using BF3/methanol as methylation agent and determined by capillary gas chromatographic analysis coupled with electron capture detector. Recovery yields are nearly 100% for all monohaloacetic acids. Detection limits are lower than 0.1, 0.05 and 0.01 mg/dm3 for chloroacetic acid, bromoacetic acid and iodoacetic acid, respectively. This procedure is suitable for routine analyses of haloacetic acids. (en)
- Práce popisuje postup stanovení chloroctové, bromoctové a jodoctové kyseliny v pivu. Pro přečištění extraktu byla použita metoda extrakce na pevné fázi (SPE). Pozornost byla věnována výběru vhodných SPE kolonek. V dalším kroku byly vyextrahované analyty derivatizovány methylačním činidlem BF3/methanol a následně stanoveny na plynovém chromatografu s detektorem elektronového záchytu. Pro všechny monohalogenové kyseliny se výtěžnost blížila k 100 %. Detekční limity byly pro chloroctovou kyselinu menší než 0,1 mg/l, pro bromoctovou kyselinu menší než 0,05 mg/l a pro jodoctovou kyselinu menší než 0,01 mg/l. Tento postup je vhodný pro rutinní analýzy halogenoctových kyselin. (cs)
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Title
| - Determination of haloacetic acids in beer
- Determination of haloacetic acids in beer (en)
- Stanovení halogenoctových kyselin v pivu (cs)
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skos:prefLabel
| - Determination of haloacetic acids in beer
- Determination of haloacetic acids in beer (en)
- Stanovení halogenoctových kyselin v pivu (cs)
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skos:notation
| - RIV/60193697:_____/08:#0000430!RIV08-MSM-60193697
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http://linked.open.../vavai/riv/strany
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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...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:_____/08:#0000430
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - haloacetic acids; solid phase extraction; beer (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...ontrolniKodProRIV
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http://linked.open...v/mistoKonaniAkce
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http://linked.open...i/riv/mistoVydani
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http://linked.open...i/riv/nazevZdroje
| - Proceedings of ECOpole 07
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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...iv/tvurceVysledku
| - Horák, Tomáš
- Kellner, Vladimír
- Čejka, Pavel
- Jurková, Marie
- Čulík, Jiří
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http://linked.open...vavai/riv/typAkce
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http://linked.open.../riv/zahajeniAkce
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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://purl.org/ne...btex#hasPublisher
| - Society of Ecological Chemistry and Engineering
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