@article{MTMT:34152053,
	title = {Correctness of the van 't Hoff analysis for homogeneous or heterogeneous retention},
	url = {https://m2.mtmt.hu/api/publication/34152053},
	author = {Szerencsés, Dénes and Sepsey, Annamária and Felinger, Attila},
	doi = {10.1016/j.chroma.2023.464380},
	journal-iso = {J CHROMATOGR A},
	journal = {JOURNAL OF CHROMATOGRAPHY A},
	volume = {1709},
	unique-id = {34152053},
	issn = {0021-9673},
	year = {2023},
	eissn = {1873-3778},
	orcid-numbers = {Sepsey, Annamária/0000-0003-0508-5747}
}

@article{MTMT:34135268,
	title = {The Competitive Adsorption of Water and Methanol on a Hybrid Silica Stationary Phase in Supercritical Fluid Chromatography},
	url = {https://m2.mtmt.hu/api/publication/34135268},
	author = {Kazmouz, Muhamad Yahia and Felinger, Attila},
	doi = {10.3390/separations10090492},
	journal-iso = {SEPARATIONS},
	journal = {SEPARATIONS},
	volume = {10},
	unique-id = {34135268},
	issn = {2297-8739},
	abstract = {This study investigates the adsorption of methanol, water, and their mixture in a hybrid silica stationary phase with supercritical carbon dioxide as a mobile phase in supercritical fluid chromatography (SFC). The adsorption isotherms of methanol and water were determined by two dynamic methods: the elution by characteristic point (ECP) method and the inverse method (IM). Both the single-component and competitive bi-Langmuir models were pre-selected for the inverse method. The initial parameters of the single-component isotherm for both methanol and water were estimated with the ECP method by fitting the experimental data to the bi-Langmuir isotherm model. Then, using the inverse method, we refined the single-component isotherm parameter values, which were then further used for determining the competitive isotherm of the methanol–water mixture. The elution profile of the (methanol–water) mixture sample was calculated by the equilibrium-dispersive (ED) model. The results indicated that there is a good agreement between the experimental band profile and the calculated band profile, which was obtained from the parameters of the competitive bi-Langmuir isotherm model, revealing a competition between methanol and water to reach the adsorption sites. Furthermore, the saturation capacity of the adsorption sites in the stationary phase decreased in the case of the mixture sample compared to those for the single-component sample.},
	year = {2023},
	eissn = {2297-8739}
}

@article{MTMT:33567577,
	title = {An Adventurous Journey Around the Thermodynamics of Liquid Chromatography},
	url = {https://m2.mtmt.hu/api/publication/33567577},
	author = {Sepsey, Annamária},
	doi = {10.56530/lcgc.na.qk2090y9},
	journal-iso = {LC GC N AM},
	journal = {LC GC NORTH AMERICA: SOLUTION FOR SEPARATION SCIENTISTS},
	volume = {40},
	unique-id = {33567577},
	issn = {1527-5949},
	year = {2022},
	eissn = {1939-1889},
	pages = {584-586}
}

@article{MTMT:32729411,
	title = {The impact of placement, experimental conditions, and injections on mass flow measurements in supercritical fluid chromatography.},
	url = {https://m2.mtmt.hu/api/publication/32729411},
	author = {Rédei, Csanád and Felinger, Attila},
	doi = {10.1016/j.chroma.2022.462919},
	journal-iso = {J CHROMATOGR A},
	journal = {JOURNAL OF CHROMATOGRAPHY A},
	volume = {1668},
	unique-id = {32729411},
	issn = {0021-9673},
	abstract = {In supercritical fluid chromatography (SFC), the variation of pressure, temperature and volumetric flow-rate is most noticeable when the mobile phase contains only neat carbon dioxide. This can be explained by the compressibility of CO2 and introduces several difficulties to the work of chromatographers. The only flow parameter that is considered to be constant across the SFC system is the mass flow-rate. It has been shown that the Coriolis flow meter (CFM) provides different types of information depending on its placement in the instrument. Therefore, the goal of this paper is to investigate several factors affecting the variation of mass flow-rate in SFC, including four different configurations around the column, four sets of experimental conditions along with two columns and a zero-volume union. The effect of disturbances introduced by injections are studied as well. The results show different mass flow-rates when taken at the inlet or the outlet of the column. In addition, different columns produced different tendencies of variations. Study of the injections showed that the initial severe drop of mass flow is reduced when the averages are taken until the elution times of the chosen compounds. Additional testing related to possible leaks and CFM calibration showed that even if all standard operating procedures are strictly followed, reproducibility of the mass-flow rate can still be an issue.},
	keywords = {injection; nitrous oxide; Supercritical fluid chromatography; mass flow-rate; Coriolis flow meter},
	year = {2022},
	eissn = {1873-3778}
}

@article{MTMT:32095193,
	title = {The adsorption of methanol on reversed phase stationary phases in supercritical fluid chromatography},
	url = {https://m2.mtmt.hu/api/publication/32095193},
	author = {Kazmouz, Muhamad Yahia and Rédei, Csanád and Felinger, Attila},
	doi = {10.1016/j.chroma.2021.462386},
	journal-iso = {J CHROMATOGR A},
	journal = {JOURNAL OF CHROMATOGRAPHY A},
	volume = {1653},
	unique-id = {32095193},
	issn = {0021-9673},
	year = {2021},
	eissn = {1873-3778},
	orcid-numbers = {Kazmouz, Muhamad Yahia/0000-0002-4231-9920}
}

@article{MTMT:31626827,
	title = {The impact of column hardware on efficiency in liquid chromatography (LC)},
	url = {https://m2.mtmt.hu/api/publication/31626827},
	author = {Zelenyánszki, Dóra and Felinger, Attila},
	journal-iso = {LC GC EUR},
	journal = {LC GC EUROPE},
	volume = {33},
	unique-id = {31626827},
	issn = {1471-6577},
	year = {2020},
	eissn = {1471-6577},
	pages = {498-504}
}

@article{MTMT:31321664,
	title = {Separation of enantiomers of chiral basic drugs with amylose- and cellulose- phenylcarbamate-based chiral columns in acetonitrile and aqueous-acetonitrile in high-performance liquid chromatography with a focus on substituent electron-donor and electron-acceptor effects},
	url = {https://m2.mtmt.hu/api/publication/31321664},
	author = {Matarashvili, Iza and Chelidze, Aluda and Dolidze, Gizo and Kobidze, Giorgi and Zaqashvili, Nino and Dadianidze, Alexandre and Bacskay, Ivett Orsolya and Felinger, Attila and Farkas, Tivadar and Chankvetadze, Bezhan},
	doi = {10.1016/j.chroma.2020.461218},
	journal-iso = {J CHROMATOGR A},
	journal = {JOURNAL OF CHROMATOGRAPHY A},
	volume = {1624},
	unique-id = {31321664},
	issn = {0021-9673},
	year = {2020},
	eissn = {1873-3778},
	orcid-numbers = {Felinger, Attila/0000-0001-7130-1968}
}

@article{MTMT:30859244,
	title = {The correctness of van ’t Hoff plots in chiral and achiral chromatography},
	url = {https://m2.mtmt.hu/api/publication/30859244},
	author = {Sepsey, Annamária and Horváth, Éva and Catani, Martina and Felinger, Attila},
	doi = {10.1016/j.chroma.2019.460594},
	journal-iso = {J CHROMATOGR A},
	journal = {JOURNAL OF CHROMATOGRAPHY A},
	volume = {1611},
	unique-id = {30859244},
	issn = {0021-9673},
	abstract = {van ’t Hoff plots (logarithm of the retention factor, ln k, vs. the reciprocal of absolute temperature, 1/T) are commonly used in chromatographic studies to characterize the retention mechanisms based on the determined enthalpy (ΔH∘) and entropy (ΔS∘) change of analyte adsorption. In reversed phase liquid chromatography, the thermodynamic parameters could help to understand the retention mechanism. In chiral chromatography, however, the conclusions drawn based on van ’t Hoff plots can be deceptive because several different types of adsorption sites are present on the surface of stationary phase. The influence of heterogeneity, however, cannot be studied experimentally. In this study, we employed two reversed phase columns with different retention mechanisms to show that by serially coupling the columns, the obtained thermodynamic parameters are not related to the results obtained on the respective individual columns. Furthermore, our results show that the experimental conditions – such as flow-rate or choice of instrument – will strongly influence the calculated enthalpy and entropy values.},
	keywords = {THERMODYNAMICS; Enthalpy change; ENTROPY CHANGE; van ’t Hoff plot; Adsorption sites; Chiral separation mechanism},
	year = {2020},
	eissn = {1873-3778},
	orcid-numbers = {Felinger, Attila/0000-0001-7130-1968}
}

@{MTMT:32012564,
	title = {Komplex mintakeverékből származó komponensek eredetének meghatározása és vizsgálata alterációs analízissel},
	url = {https://m2.mtmt.hu/api/publication/32012564},
	author = {Simon, József and Rédei, Csanád and Zelenyánszki, Dóra and Felinger, Attila},
	booktitle = {Műszaki Kémiai Napok 2019: Chemical Engineering Conference 2019},
	unique-id = {32012564},
	year = {2019},
	pages = {75-75}
}

@article{MTMT:30731628,
	title = {Flow-Reversal Experiments with Macromolecules to Measure Column End Efficiency and Bed Heterogeneity},
	url = {https://m2.mtmt.hu/api/publication/30731628},
	author = {Zelenyánszki, Dóra and Mester, Adrienn and Felinger, Attila},
	doi = {10.1007/s10337-019-03759-0},
	journal-iso = {CHROMATOGRAPHIA},
	journal = {CHROMATOGRAPHIA},
	volume = {82},
	unique-id = {30731628},
	issn = {0009-5893},
	year = {2019},
	eissn = {1612-1112},
	pages = {1303-1309}
}