- PII
- S30345510S0023476125050103-1
- DOI
- 10.7868/S3034551025050103
- Publication type
- Article
- Status
- Published
- Authors
- Volume/ Edition
- Volume 70 / Issue number 5
- Pages
- 800-809
- Abstract
- For the first time, the extended fine structure of the absorption spectra for a protein monolayer on a liquid surface has been measured. We used as a test object human serum albumin treated with zinc chloride solution at a critically low concentration (3.6×10 M), which is comparable to the zinc concentration in blood serum. A multi-pass technique for detecting fluorescence radiation under total external reflection conditions was applied. The temporal stability of the Zn K-edge absorption spectra was examined using weighted regression analysis. It is shown that the error of the oscillating part of the total spectrum did not exceed 1%, which allowed to determine the radius of the first coordination sphere with an accuracy of ±0.01 Å.
- Keywords
- Date of publication
- 30.06.2025
- Year of publication
- 2025
- Number of purchasers
- 0
- Views
- 35
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