Graphical method for the determination of water/gas partition coefficients of volatile organic compounds by a headspace gas chromatography technique

Bakierowska, Anna-Maria; Trzeszczynski, Jerzy

doi:10.1016/s0378-3812(03)00286-3

Cited by 20 publications

(3 citation statements)

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“…The static headspace method is considered a very effective tool for analyzing volatile organic compounds present in contaminated condensed samples. Therefore, the method has found wide-ranging use in environmental analysis, and various techniques are available in order to determine the gas−liquid partition coefficients. − The aim of this investigation was to determine the Henry's law constants of DMS in pure water, in iron-free CDTA solutions, and in CDTA−Fe(II) complex solutions using a static headspace method based on chromatography measurements of the equilibrium headspace peak areas of DMS. The method was successfully used in the case of DMDS .…”

Section: Introductionmentioning

confidence: 99%

Gas−Liquid Partition Coefficients and Henry's Law Constants of DMS in Aqueous Solutions of Fe(II) Chelate Complexes Using the Static Headspace Method

Iliuta

Larachi

2005

J. Chem. Eng. Data

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Total reduced sulfurs quartet (H2S, CH3SH, CH3SCH3 [DMS]), CH3S2CH3 [DMDS]) is part of a spiny environmental problem afflicting the pulp mill industry exploiting the Kraft sulfate pulp process. Utilization of the ferric chelate complex of trans-1,2-cyclohexanediaminetetraacetic acid (CDTA) for the oxidative scrubbing of H2S and CH3SH in the Kraft mill atmospheric effluent streams is beneficial from the standpoints of iron protection against precipitation and oxygen-mediated regenerative oxidation of ferrous chelate CDTA. The remaining DMS and DMDS, considered non-oxidizable in CDTA−Fe(III) aqueous alkaline solutions, undergo physical absorption so their solubility is a crucial parameter for the design of the scrubbing−absorption process. The solubility of DMS in pure water, aqueous iron-free CDTA solutions, and CDTA−Fe(II) complex solutions was measured at atmospheric pressure between (288 and 308) K and for chelate concentrations between (38 and 300) mol·m-3. As experimental results revealed that DMS destabilized ferrous chelates at very large CDTA−Fe(II) concentrations, a maximum chelate concentration presenting practical interest was established. The static headspace method was used with an estimated uncertainty of ±2 %. It was shown that DMS solubility decreases with increasing temperature for all systems studied. CDTA concentration does not considerably affect DMS solubility; moreover, the concentration effect is negligible at 308 K. The solution pH was uninfluential on DMS solubility over the covered concentration and temperature ranges. CDTA concentration less than 100 mol·m-3 is recommended for use in absorption scrubbing equipments.

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Section: Introductionmentioning

confidence: 99%

Gas−Liquid Partition Coefficients and Henry's Law Constants of DMS in Aqueous Solutions of Fe(II) Chelate Complexes Using the Static Headspace Method

Iliuta

Larachi

2005

J. Chem. Eng. Data

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“…All data correspond to 298.15 K and 0.1 MPa. Experimental data: (a) Jönsson et al; (b) Polak and Lu; (c) Wilhelm et al; (d) Nelson and de Ligny; (e) Ryu and Park; (f) Tewari et al; (g) Dewulf et al; (h) Owens et al; (i) Görgényi et al; (j) Bakierowska and Trzeszczynski; (k) Dohnal and Hovorka; (l) Peng and Wan; (m) Sutton and Calder; (n) Mackay and Shiu; (o) Dewulf et al; (p) de Hemptinne et al; (q) Mc Bain and Lissant …”

Section: Resultsmentioning

confidence: 99%

Application of Group Additivity Approach to Polar and Polyfunctional Aqueous Solutes

Sedlbauer

Jakubu

2008

Ind. Eng. Chem. Res.

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Estimates of physical or thermodynamic properties of organic compounds are often based on a group contribution approach or other quantitative structure−property relationship. Polar functional groups introduce a perturbation to intramolecular distribution of electrons, resulting in violation of a group additivity assumption known as structural or proximity effects. We propose a method for quantitative evaluation of these effects from experimental data and present the results for polar functional group contributions and their structural/proximity effects calculated for several standard thermodynamic properties of hydration at ambient conditions and at high temperatures and pressures. Recommendations are provided for further developments of group contribution methods in aqueous solutions of organics.

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“…Since the concentration of the solute in the headspace is proportional to the area A of the GC peak [18,19], for a given volume of headspace in the column V g ,…”

Section: Dimensionless Henry's Constant (H)mentioning

confidence: 99%

Determination and prediction of Kow and dimensionless Henry's constant (H) for 6 ether compounds at several temperatures

Hwang

Kwak

Park

2010

Journal of Industrial and Engineering Chemistry

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Graphical method for the determination of water/gas partition coefficients of volatile organic compounds by a headspace gas chromatography technique

Cited by 20 publications

References 20 publications

Gas−Liquid Partition Coefficients and Henry's Law Constants of DMS in Aqueous Solutions of Fe(II) Chelate Complexes Using the Static Headspace Method

Gas−Liquid Partition Coefficients and Henry's Law Constants of DMS in Aqueous Solutions of Fe(II) Chelate Complexes Using the Static Headspace Method

Application of Group Additivity Approach to Polar and Polyfunctional Aqueous Solutes

Determination and prediction of Kow and dimensionless Henry's constant (H) for 6 ether compounds at several temperatures

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