ChemRxiv
These are preliminary reports that have not been peer-reviewed. They should not be regarded as conclusive, guide clinical practice/health-related behavior, or be reported in news media as established information. For more information, please see our FAQs.
Amino_Acid_KCl_chemRxiv.pdf (3.6 MB)

The Surface Composition of Amino Acid - KCl Solutions is pH-Dependent

preprint
submitted on 25.09.2020 and posted on 28.09.2020 by Geethanjali Gopakumar, Isaak Unger, Clara-Magdalena Saak, Gunnar Öhrwall, Arnaldo Naves de Brito, Tulio Costa Rizuti da Rocha, Christophe Nicolas, Carl Caleman, Olle Björneholm
The manuscript based on X-ray photoelectron spectroscopy on aqueous solutions containing KCl and different amino acids. Our analysis suggests that the presence of the inorganic ions at the surface of the liquid is strongly dependent on the pH of the solution and the type of amino acid.

Funding

FAPESP (the Sao Paulo Research Foundation, Process number 2017/11986-5

ANP (Brazil’s National Oil, Natural Gas and Biofuels Agency)

National Council for Scientific and Technological Development CNPq 401581/2016-0

Swedish-Brazilian collaboration STINT-CAPES (9805/2014-01).

Carl Tryggers Foundation

Swedish Research Council (grant 2017-04162)

Swedish Research Council (grant 2018-00740)

History

Email Address of Submitting Author

isaak.unger@physics.uu.se

Institution

Uppsala University

Country

Sweden

ORCID For Submitting Author

0000-0003-1001-4134

Declaration of Conflict of Interest

None of the authors declares any competing interests with regard to the manuscript.

Exports

Logo branding

Exports