Search Results - "Johannsen, Monika"

Measuring and modeling adsorption equilibria of non-volatile compounds dissolved in supercritical carbon dioxide on nanoparticles using dynamic methods by Kern, Johannes, Johannsen, Monika

“…[Display omitted] •Nanoparticles can be used for dynamic adsorption measurement methods when the appropriate packing method is used.•AlO(OH) hollow spheres…”
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Retention characteristics of silica materials in carbon dioxide/methanol mixtures studied by inverse supercritical fluid chromatography by Sun, Miaotian, Ruiz Barbero, Sheila, Johannsen, Monika, Smirnova, Irina, Gurikov, Pavel

“…•Methodology for rational selection of carriers for pharmaceuticals.•Application of LSER model on custom packed column of silica aerogel.•Minimal and specific…”
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Electrical Capacitance Volume Tomography (ECVT) for Characterization of Additively Manufactured Lattice Structures (AMLS) in Gas-Liquid Systems by Spille, Claas, Tholan, Vaishakh Prasannan, Straiton, Benjamin, Johannsen, Monika, Hoffmann, Marko, Marashdeh, Qussai, Schlüter, Michael

“…Against the background of current and future global challenges, such as climate change, process engineering requires increasingly specific solutions adapted to…”
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Development and Validation of Retention Models in Supercritical Fluid Chromatography for Impregnation Process Design by Sun, Miaotian, Ülker, Zeynep, Chen, Zhixing, Deeptanshu, Sivaraman, Johannsen, Monika, Erkey, Can, Gurikov, Pavel

“…The retention factor is the key quantity for the thermodynamic analysis of the retention mechanism in chromatographic experiments. In this work, we measure…”
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Adsorption equilibria of benzoic acid on silica gel from supercritical carbon dioxide by Pérez Molina, Berta Carola, Johannsen, Monika

“…Supercritical fluids, especially carbon dioxide, are increasingly used as carriers for adsorption–desorption processes, particularly in the pharmaceutical…”
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Enantioseparation of 1-phenyl-1-propanol by supercritical fluid-simulated moving bed chromatography by Rajendran, Arvind, Peper, Stephanie, Johannsen, Monika, Mazzotti, Marco, Morbidelli, Massimo, Brunner, Gerd

“…The enantioseparation of 1-phenyl-1-propanol through the supercritical fluid-simulated moving bed (SF-SMB) process is studied. Non-linear isotherms were…”
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Solubilities of the Fat-Soluble Vitamins A, D, E, and K in Supercritical Carbon Dioxide by Johannsen, Monika, Brunner, Gerd

“…Solubilities of eight different species of the fat-soluble vitamins A, D, E, and K in supercritical carbon dioxide were measured at (313, 333, and 353) K and…”
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Supercritical fluid chromatographic separation on preparative scale and in continuous mode by Johannsen, Monika, Brunner, Gerd

“…[Display omitted] •Chromatography with supercritical fluids (SFC) is a powerful separation tool.•PrepSFC is realized as discontinuous batch or continuous…”
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Modeling adsorption on energetically heterogeneous surfaces with an extended SAFT-VR approach by Kern, Johannes, Johannsen, Monika

“…[Display omitted] Adsorption equilibria of methanol/carbon dioxide mixtures on plain silica particles at 308K and pressures of 10.1MPa, 12.7MPa, 15.1MPa and…”
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Influence of chemical nature of carrier materials on the dissolution behavior of racemic ibuprofen by Reiser, Sarah, Sun, Miaotian, Johannsen, Monika, Türk, Michael

“…[Display omitted] •The controlled particle deposition process was successfully applied to load ibuprofen onto different carrier materials.•The experimental…”
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Separation of enantiomers of ibuprofen on chiral stationary phases by packed column supercritical fluid chromatography by Johannsen, Monika

“…A packed column supercritical fluid chromatography (SFC) method for the separation of ibuprofen enantiomers on a chiral stationary phase and CO 2 with modifier…”
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New aspects on adsorption from supercritical fluid phases by Brunner, Gerd, Johannsen, Monika

“…Adsorption from a high pressure gaseous phase, containing as one major component a supercritical fluid is discussed. The fundamentals are presented as a basis…”
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Preparative chromatography with supercritical fluids Comparison of simulated moving bed and batch processes by PEPER, Stephanie, JOHANNSEN, Monika, BRUNNER, Gerd

“…Preparative chromatography is a key technology for the separation of fine chemicals in production scale. Most of the published studies are carried out using…”
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Influence of 2-Propanol on Adsorption Equilibria of α- and δ-Tocopherol from Supercritical Carbon Dioxide on Silica Gel by Bolten, Dennis, Johannsen, Monika

“…Knowledge of thermodynamic functions describing adsorption isotherms is of much importance for the design and optimization of adsorption processes. This work…”
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Gerd Brunner Festschrift by Türk, Michael, Johannsen, Monika, Dohrn, Ralf

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Solubilities and Adsorption Equilibria of β-Carotene in Supercritical and Near-Critical Fluids by Chuang, Meng-Han, Johannsen, Monika

“…A systematic investigation of solubility and adsorption equilibria of β-carotene in carbon dioxide and propane, respectively, at elevated pressures was carried…”
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Supercritical fluid simulated moving bed chromatography for the separation of ethyl linoleate and ethyl oleate by Martínez Cristancho, Carlos Andrés, Peper, Stephanie, Johannsen, Monika

“…[Display omitted] ► We design a two-step SF-SMB process for the separation of fatty acid ethyl esters based on batch experiments. ► We carry out an…”
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Adsorption equilibria of α- and δ-tocopherol from supercritical mixtures of carbon dioxide and 2-propanol onto silica by means of perturbation chromatography by Lübbert, Matthias, Brunner, Gerd, Johannsen, Monika

“…For the determination of adsorption isotherms of dissolved components from supercritical fluids, an experimental equipment has been constructed. It consists of…”
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Preparative chromatography with supercritical fluids by Peper, Stephanie, Johannsen, Monika, Brunner, Gerd

“…Preparative chromatography is a key technology for the separation of fine chemicals in production scale. Most of the published studies are carried out using…”
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Partitioning of organic biocides between wood and supercritical carbon dioxide by Kjellow, Anders W., Henriksen, Ole, Sørensen, Jens Christian, Johannsen, Monika, Felby, Claus

“…The degree of interaction between selected organic biocides (tebuconazole, propiconazole, and IPBC) and wood under supercritical conditions was investigated…”
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