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Figure 9
pKa value of 1 determined by UV titration (1st derivative, red line). Spectroscopic changes determined at 280 nm at different pH values (black line) were measured in 0.1 M sodium phosphate buffer.

Journal logoSTRUCTURAL
CHEMISTRY
ISSN: 2053-2296
Volume 76| Part 5| May 2020| Pages 513-523
https://doi.org/10.1107/S2053229620004684
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