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| rdf:type
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| Description
| - Dimensionless Henry?s law constants (air/water partition coefficient Kaw) of four volatile organic compounds (VOCs), namely, methyl tert-butyl ether, vinyl acetate, dimethyl carbonate, and diethyl carbonate, are reported. Applying headspace solid-phase microextraction (HS-SPME) in combination with gas chromatographic analysis, whose response was calibrated by the use of standard gas mixtures, Kaw values (0.001 < Kaw < 0.1) were determined in the temperature range of (10 to 45) °C. Replicated measurements showed a good repeatability (average relative standard deviation 2.5 %, n = 144). The results were checked through additional Kaw measurements carried out using the inert gas stripping (IGS) technique at 25 °C, receiving intermethod deviations < 5 %. Furthermore, approximate values of hydration enthalpies ΔHhyd and hydration entropies ΔShyd for the four VOCs were derived from linear van?t Hoff fits of the Kaw(T) data, demonstrating an enthalpy-driven partition process.
- Dimensionless Henry?s law constants (air/water partition coefficient Kaw) of four volatile organic compounds (VOCs), namely, methyl tert-butyl ether, vinyl acetate, dimethyl carbonate, and diethyl carbonate, are reported. Applying headspace solid-phase microextraction (HS-SPME) in combination with gas chromatographic analysis, whose response was calibrated by the use of standard gas mixtures, Kaw values (0.001 < Kaw < 0.1) were determined in the temperature range of (10 to 45) °C. Replicated measurements showed a good repeatability (average relative standard deviation 2.5 %, n = 144). The results were checked through additional Kaw measurements carried out using the inert gas stripping (IGS) technique at 25 °C, receiving intermethod deviations < 5 %. Furthermore, approximate values of hydration enthalpies ΔHhyd and hydration entropies ΔShyd for the four VOCs were derived from linear van?t Hoff fits of the Kaw(T) data, demonstrating an enthalpy-driven partition process. (en)
- V práci jsou prezentovány bezrozměrné Henryho konstanty (rozdělovací koeficient Kaw vzduch/voda) čtyř těkavých organických sloučenin (VOC): methyl tert-butyl éteru, vinyl acetátu, dimethyl karbonátu a diethyl karbonátu. Hodnoty Kaw (0.001 < Kaw < 0.1) byly stanoveny v teplotním intervalu 10 až 45°C pomocí headspace solid-phase microextraction (HS-SPME) v kombinaci s chromatografickou analýzou, kde odezvy plynového chromatografu byly kalibrovány užitím standardních plynných směsí. Opakovaná měření ukázala dobrou reprodukovatelnost (průměrná relativní standardní odchylka 2.5 %, n = 144). Výsledky byly ověřeny prostřednictvím dalších Kaw měření prováděných metodou inert gas stripping (IGS) při 25°C. Odchylky výsledků obou metod byly menší než 5 %. Dále byly z lineárního van?t Hoffova vztahu Kaw(T) odhadnuty hodnoty hydratačních enthalpií ΔHhyd and hydratačních entropií ΔShyd zkoumaných těkavých organických sloučenin a výsledky demostrují, že distribuce mezi vzduch a vodu je entalpicky ř (cs)
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| Title
| - Determination of Temperature-Dependent Henry?s Law Constant of Four Oxygenated Solutes in Water Using Headspace Solid-Phase Microextraction Technique
- Stanovení teplotní závislosti Henryho konstant čtyř kyslíkatých látek ve vodě pomocí Solid-Phase Microextraction (cs)
- Determination of Temperature-Dependent Henry?s Law Constant of Four Oxygenated Solutes in Water Using Headspace Solid-Phase Microextraction Technique (en)
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| skos:prefLabel
| - Determination of Temperature-Dependent Henry?s Law Constant of Four Oxygenated Solutes in Water Using Headspace Solid-Phase Microextraction Technique
- Stanovení teplotní závislosti Henryho konstant čtyř kyslíkatých látek ve vodě pomocí Solid-Phase Microextraction (cs)
- Determination of Temperature-Dependent Henry?s Law Constant of Four Oxygenated Solutes in Water Using Headspace Solid-Phase Microextraction Technique (en)
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| skos:notation
| - RIV/60461373:22340/08:00020690!RIV09-MSM-22340___
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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/60461373:22340/08:00020690
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - Headspace solid-phase microextraction; Air/water partition coefficient; Henry's low constant; Temperature dependence (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 Chemical Engineering Data
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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
| - Dohnal, Vladimír
- Vrbka, Pavel
- Böhme, Alexander
- Paschke, Albrecht
- Schüürmann, Gerrit
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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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