The efficiency of micellar solubilization of naphthalene from aqueous solutions using rhamnolipid as a biological surfactant according to NMR diffusometry
© 2024 The Author(s). Magnetic Resonance in Chemistry published by John Wiley & Sons Ltd.
| Veröffentlicht in: | Magnetic resonance in chemistry : MRC. - 1985. - 62(2024), 10 vom: 05. Sept., Seite 712-717 |
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| Format: | Online-Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2024
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| Zugriff auf das übergeordnete Werk: | Magnetic resonance in chemistry : MRC |
| Schlagworte: | Journal Article NMR diffusometry micelles naphthalene rhamnolipid solubilization |
| Zusammenfassung: | © 2024 The Author(s). Magnetic Resonance in Chemistry published by John Wiley & Sons Ltd. The micellar solubilization of naphthalene from its saturated aqueous solutions using the biosurfactant rhamnolipid was studied. Using the NMR diffusion method, selective measurements of the self-diffusion coefficients of molecules of all components of the solution-naphthalene, rhamnolipid, and water-were carried out at various rhamnolipid concentrations from 0.06 to 100 g/L. Based on the results of diffusometry, the distribution of naphthalene molecules between the states free in solution and states bound by micelles was found. With an increase in the concentration of rhamnolipids, the proportion of bound naphthalene molecules increases from 50% at CRL = 2 g/L to 100% at CRL ≥ 50 g/L. The micelle-water partition coefficient Km and the molar solubilization ratio MSR were calculated |
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| Beschreibung: | Date Revised 06.09.2024 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
| ISSN: | 1097-458X |
| DOI: | 10.1002/mrc.5468 |