PubMed · 33722
The hydration of a zwitterion, glycine, as a function of pH.
Abstract
1. The hydration numbers of glycine (concentrations 1--3 M), as a function of concentration, were determined by surface tension measurements, using octan-1-ol as a 'reference' substance. 2. The hydration number of glycine at the isoelectric point decreased from 17.7 to 10.7 upon increasing the concentration from 1 to 3 M. 3. The changes in hydration of glycine as a function of the pH are due to the difference between hydrations of the ionized functional groups (NH+3, COO-) and the added ions (Me+ A-).
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M Tschapek, C Wasowski. 1979-02-01. The hydration of a zwitterion, glycine, as a function of pH.. https://doi.org/10.1016/0304-4165(79)90147-8
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