About: Refined non-steady-state gas-liquid chromatography for accurate determination of limiting activity coefficients of volatile organic compounds in water. Application to C1-C5 alkanols     Goto   Sponge   NotDistinct   Permalink

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Description
  • Tato práce prezentuje novou zdokonalenou metodu nestacionární plynové chromatografie (NSGLC) vhodnou pro stanovení limitních aktivitních koeficientů VOC ve vodě. Modifikace původní NSGLC teorie se týkají jejích základů (eluční rychlost rozpouštědla z kolony) i dalších nových aspektů. Experimentální postup je upraven tak, aby byly využity moderní technické možnosti. Zdokonalená metoda je užita systematicky ke stanovení limitních aktivitních koeficientů (Henryho konstanty, limitní relativní těkavosti) izomerních C1-C5 alkanolů ve vodě při 328.15 K. Aplikací zdokonalené NSGLC teorie na v rámci této práce naměřená retenční data se hodnoty zvýšily o 15-20 % oproti původní teorii. Hodnoty získané novou zdokonalenou teorií NSGLC se velmi dobře shodují (typicky v rámci 3%) s opravdu spolehlivými literárními daty stanovenými jinými experimentálními technikami. (cs)
  • This work presents a new refined method of non-steady-state gas-liquid chromatography (NSGLC) suitable for determination of limiting activity coefficients of VOCs in water. The modifications done to the original NSGLC theory address its elements (as the solvent elution rate from the column) as well as other new aspects. The experimental procedure is modified accordingly, taking advantage of current technical innovations. The refined method is used systematically to determine limiting activity coefficients (Henry's law constants, limiting relative volatilities) of isomeric C1-C5 alkanols in water at 328.15 K. Applied to retention data measured in this work the refined NSGLC theory gives values 15-20 % higher than those from the original approach. The values obtained by the refined NSGLC method agree very well (typically within 3%) with the most reliable literature data determined by other experimental techniques.
  • This work presents a new refined method of non-steady-state gas-liquid chromatography (NSGLC) suitable for determination of limiting activity coefficients of VOCs in water. The modifications done to the original NSGLC theory address its elements (as the solvent elution rate from the column) as well as other new aspects. The experimental procedure is modified accordingly, taking advantage of current technical innovations. The refined method is used systematically to determine limiting activity coefficients (Henry's law constants, limiting relative volatilities) of isomeric C1-C5 alkanols in water at 328.15 K. Applied to retention data measured in this work the refined NSGLC theory gives values 15-20 % higher than those from the original approach. The values obtained by the refined NSGLC method agree very well (typically within 3%) with the most reliable literature data determined by other experimental techniques. (en)
Title
  • Refined non-steady-state gas-liquid chromatography for accurate determination of limiting activity coefficients of volatile organic compounds in water. Application to C1-C5 alkanols
  • Refined non-steady-state gas-liquid chromatography for accurate determination of limiting activity coefficients of volatile organic compounds in water. Application to C1-C5 alkanols (en)
  • Zdokonalená metoda nestacionární plynové chromatografie pro přesné stanovení limitních aktivitních koeficientů těkavých organických látek ve vodě. Aplikace na C1-C5 alkanoly (cs)
skos:prefLabel
  • Refined non-steady-state gas-liquid chromatography for accurate determination of limiting activity coefficients of volatile organic compounds in water. Application to C1-C5 alkanols
  • Refined non-steady-state gas-liquid chromatography for accurate determination of limiting activity coefficients of volatile organic compounds in water. Application to C1-C5 alkanols (en)
  • Zdokonalená metoda nestacionární plynové chromatografie pro přesné stanovení limitních aktivitních koeficientů těkavých organických látek ve vodě. Aplikace na C1-C5 alkanoly (cs)
skos:notation
  • RIV/60461373:22340/05:00014727!RIV06-MSM-22340___
http://linked.open.../vavai/riv/strany
  • 157-164
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • Z(MSM 223400008), Z(MSM6046137307)
http://linked.open...iv/cisloPeriodika
  • 1-2
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 540428
http://linked.open...ai/riv/idVysledku
  • RIV/60461373:22340/05:00014727
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • non-steady-state gas-liquid chromatography; limiting activity coefficient; Henry's law constant; VOC; alkanols; water (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • NL - Nizozemsko
http://linked.open...ontrolniKodProRIV
  • [B41214688387]
http://linked.open...i/riv/nazevZdroje
  • Journal of Chromatography A
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...UplatneniVysledku
http://linked.open...iv/tvurceVysledku
  • Dohnal, Vladimír
  • Ondo, Daniel
http://linked.open...n/vavai/riv/zamer
issn
  • 0021-9673
number of pages
http://localhost/t...ganizacniJednotka
  • 22340
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