Adsorption behaviour of sugars versus their activity in single and multicomponent liquid solutions

Nowak, Jadwiga; Poplewska, Izabela; Antos, Dorota; Seidel‐Morgenstern, A.

doi:10.1016/j.chroma.2009.01.043

Cited by 20 publications

(14 citation statements)

References 35 publications

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“…Such an approach was used by Nowak et al [19] to describe the competitive adsorption of mixtures of sugars on an ion-exchange resin. Due to the high concentration of sugars in mixtures processed in industrial chromatography, even much above 100 g L -1 , non-ideality of their behavior in the liquid phase cannot be neglected.…”

Section: Ideal Solid Phase -Non-ideal Liquid Phasementioning

confidence: 99%

“…, a L i is the molar activity calculated based on the values of activity coefficients of sugars in liquid solutions [19]. Symbols: experimental data acquired in [20], lines: guide the eye.…”

Section: Ideal Liquid Phase -Ideal Adsorbed Phasementioning

confidence: 99%

“…Symbols: experimental data acquired in [20], lines: guide the eye. Symbols: experimental data [20], dashed lines: model predictions according to AST, solid lines: predictions with IAST with anti-Langmuir model implemented as a single component isotherm equation [19]. Symbols: experimental data [20], dashed lines: model predictions according to AST, solid lines: predictions with IAST with anti-Langmuir model implemented as a single component isotherm equation [19].…”

Section: Ideal Liquid Phase -Ideal Adsorbed Phasementioning

confidence: 99%

“…a) Course of the isotherm $ q_{\rm {i}}^{\rm{*}}\, = \,f\left( {{c_{\rm {i}}}} \right) $ . b) Course of the dependency, $ q_{\rm {i}}^{\rm {*}}\, = \,f\left( {a_{\rm {i}}^{\rm {L}}} \right) $ , $ a_{\rm {i}}^{\rm {L}} $ is the molar activity calculated based on the values of activity coefficients of sugars in liquid solutions 19. Symbols: experimental data acquired in 20, lines: guide the eye.…”

Section: Simplification Of the Ast Modelmentioning

confidence: 99%

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Thermodynamics of Multicomponent Liquid Chromatography

Antos

Pia̧tkowski

2016

Chemie Ingenieur Technik

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Thermodynamic models of multicomponent adsorption in liquid chromatography are summarized and reviewed. A general description of adsorption equilibrium is presented, which is followed by simplified approaches that can be adopted for practical applications. Synergistic and competitive adsorption effects accompanying chromatographic elution are illustrated and methods of their predictions are indicated. The influence of a mobile phase modifier on the retention behavior of chromatographed species is discussed. A manner of mathematical predictions of competitive adsorption of modifiers and solutes is presented. Also in this case the analysis starts with a thermodynamically grounded general description and ends with simplified models suitable for practical purposes of design and optimization of chromatographic separations.

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Section: Ideal Solid Phase -Non-ideal Liquid Phasementioning

confidence: 99%

Section: Ideal Liquid Phase -Ideal Adsorbed Phasementioning

confidence: 99%

Section: Ideal Liquid Phase -Ideal Adsorbed Phasementioning

confidence: 99%

Section: Simplification Of the Ast Modelmentioning

confidence: 99%

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Thermodynamics of Multicomponent Liquid Chromatography

Antos

Pia̧tkowski

2016

Chemie Ingenieur Technik

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“…For example, hematite and quartz were used for the adsorption of glucose and other bio-products 11 . Ion-exchange resins were examined for the recovery of different carbohydrates including glucose, sucrose and fructose from aqueous solutions 12 13 14 . In Na + , Mg 2+ , Ca 2+ and Al 3+ exchanged zeolite-Y, the amount of glucose adsorbed was found to increase in the order of NH 4 -Y < Mg-Y < Ca-Y < Na-Y 15 .…”

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confidence: 99%

Glucose recovery from aqueous solutions by adsorption in metal–organic framework MIL-101: a molecular simulation study

Gupta

Zhang

Jiang

2015

Sci Rep

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A molecular simulation study is reported on glucose recovery from aqueous solutions by adsorption in metal-organic framework MIL-101. The F atom of MIL-101 is identified to be the most favorable adsorption site. Among three MIL-101-X (X = H, NH2 or CH3), the parent MIL-101 exhibits the highest adsorption capacity and recovery efficacy. Upon functionalization by -NH2 or -CH3 group, the steric hindrance in MIL-101 increases; consequently, the interactions between glucose and framework become less attractive, thus reducing the capacity and mobility of glucose. The presence of ionic liquid, 1-ethyl-3-methyl-imidazolium acetate, as an impurity reduces the strength of hydrogen-bonding between glucose and MIL-101, and leads to lower capacity and mobility. Upon adding anti-solvent (ethanol or acetone), a similar adverse effect is observed. The simulation study provides useful structural and dynamic properties of glucose in MIL-101, and it suggests that MIL-101 might be a potential candidate for glucose recovery.

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Water–Solid Interactions in Food Ingredients and Systems

Mauer

2020

Water Activity in Foods

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Adsorption behaviour of sugars versus their activity in single and multicomponent liquid solutions

Cited by 20 publications

References 35 publications

Thermodynamics of Multicomponent Liquid Chromatography

Thermodynamics of Multicomponent Liquid Chromatography

Glucose recovery from aqueous solutions by adsorption in metal–organic framework MIL-101: a molecular simulation study

Water–Solid Interactions in Food Ingredients and Systems

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