Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Monika Johannsen"'
Autor:
Claas Spille, Vaishakh Prasannan Tholan, Benjamin Straiton, Monika Johannsen, Marko Hoffmann, Qussai Marashdeh, Michael Schlüter
Publikováno v:
Fluids, Vol 6, Iss 9, p 321 (2021)
Against the background of current and future global challenges, such as climate change, process engineering requires increasingly specific solutions adapted to the respective problem or application, especially in gas–liquid contact apparatuses. One
Externí odkaz:
https://doaj.org/article/875cd7900ce04547a63c740f5a564fe4
Autor:
Miaotian Sun, Zeynep Ülker, Zhixing Chen, Sivaraman Deeptanshu, Monika Johannsen, Can Erkey, Pavel Gurikov
Publikováno v:
Applied Sciences, Vol 11, Iss 15, p 7106 (2021)
The retention factor is the key quantity for the thermodynamic analysis of the retention mechanism in chromatographic experiments. In this work, we measure retention factors for moderately polar solutes on four silica-based porous matrices as station
Externí odkaz:
https://doaj.org/article/5bc79d0b1dcd4f85be4d74774d7f30b1
Autor:
Monika Johannsen, Gerd Brunner
Publikováno v:
The Journal of Supercritical Fluids. 134:61-70
Chromatography with supercritical fluids (SFC) is a powerful tool for carrying out separations of substances with very similar structure and volatility, such as isomers of various kinds. In this contribution, we discuss the separation process aiming
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b4ba72cc0c2284f43c33fd20836080c2
https://doi.org/10.1016/j.supflu.2017.12.027
https://doi.org/10.1016/j.supflu.2017.12.027
Autor:
Monika Johannsen, Johannes Kern
Publikováno v:
The Journal of Supercritical Fluids. 133:70-76
Adsorption equilibria of methanol/carbon dioxide mixtures on plain silica particles at 308 K and pressures of 10.1 MPa, 12.7 MPa, 15.1 MPa and 20.1 MPa were measured with the frontal analysis by characteristic points (FACP) method using supercritical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6191c0a45f24e4954de5eda458b4b1a7
https://doi.org/10.1016/j.supflu.2017.07.014
https://doi.org/10.1016/j.supflu.2017.07.014
Publikováno v:
The Journal of Supercritical Fluids. 132:91-98
The poor aqueous solubility of ibuprofen due to its hydrophobicity limits the bioavailability of the drug in the aqueous environment of the human body. Therefore particle deposition experiments were performed with ibuprofen and different carrier mate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a8ae1959c310c5bc74b6d5d32c3cab0d
https://doi.org/10.1016/j.supflu.2017.02.015
https://doi.org/10.1016/j.supflu.2017.02.015
Autor:
Monika Johannsen, Johannes Kern
Publikováno v:
The Journal of Supercritical Fluids. 113:72-79
Adsorption equilibria of benzoic acid and ibuprofen on AlO(OH) nanoparticles were measured for the first time using a dynamic method, frontal analysis. Possible techniques for creating packed beds of nanoparticles are presented and their suitability
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0833d41529cc917ec62a592e18ce837f
https://doi.org/10.1016/j.supflu.2016.03.018
https://doi.org/10.1016/j.supflu.2016.03.018
Publikováno v:
Journal of chromatography. A. 1588
In this work, inverse supercritical fluid chromatography was applied to characterize the surface of four silica materials (three commercial Kromasils and one silica aerogel) from chromatographic retention data. Retention factors at various pressures
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::55301bfdf6f78ae51bb29ad20ccbea74
https://pubmed.ncbi.nlm.nih.gov/30658911
https://pubmed.ncbi.nlm.nih.gov/30658911
Publikováno v:
The Journal of Supercritical Fluids. 66:129-136
Supercritical fluid-simulated moving bed (SF-SMB) chromatography is an attractive technology thanks to the outstanding performance of continuous countercurrent adsorption processes in combination with the tunability of eluent strength of supercritica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e57f4ee0d8da8c75ee68c48f38ff1bb4
https://doi.org/10.1016/j.supflu.2012.02.015
https://doi.org/10.1016/j.supflu.2012.02.015
Autor:
Monika Johannsen, Meng-Han Chuang
Publikováno v:
Journal of Chemical & Engineering Data. 56:1770-1777
A systematic investigation of solubility and adsorption equilibria of β-carotene in carbon dioxide and propane, respectively, at elevated pressures was carried out. Investigated at (303, 313, and 323) K and over a pressure range from (3.2 to 13.4) M
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4dcd2e3425eb8f13d6eb4fe803d6aa76
https://doi.org/10.1021/je100229f
https://doi.org/10.1021/je100229f
Publikováno v:
The Journal of Supercritical Fluids. 54:237-242
Supercritical fluids, especially carbon dioxide, are increasingly used as carriers for adsorption–desorption processes, particularly in the pharmaceutical industry. Nevertheless, equilibria data for such processes are rather limited. Therefore, in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bc4770ca82e2df9773ab1c4596b78246
https://doi.org/10.1016/j.supflu.2010.05.015
https://doi.org/10.1016/j.supflu.2010.05.015