Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
UV–visible spectra for the titration of bis-CH with Zn(II) in aqueous solution at pH 7.4 (25 mM HEPES buffer; CL = 17 µM; Zn(II):L = 0–3). Inset: plot of the observed (circles) and calculated (dots) absorbance values at 307 nm vs. Zn(II)/ligand molar ratio.
