Determination of microscopic acid-base parameters from NMR-pH titrations

Zoltán Szakács, Márta Kraszni, Béla Noszál

Research output: Contribution to journalReview article

92 Citations (Scopus)

Abstract

The theory and practice of proton microspeciation based on NMR-pH titrations are surveyed. Principles of bi-, tri-, tetra-, and n-protic microequilibrium systems are discussed. Evaluation methods are exemplified by case studies on bi- and tetraprotic biomolecules. Selection criteria and properties of 'reporter' NMR nuclei are described. Literature data on complete microspeciations of small ligands and site-specific basicity characterizations of peptides and proteins are critically reviewed.

Original languageEnglish
Pages (from-to)1428-1448
Number of pages21
JournalAnalytical and Bioanalytical Chemistry
Volume378
Issue number6
DOIs
Publication statusPublished - Mar 1 2004

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Keywords

  • Chemical shift
  • Microscopic protonation constant
  • Microspeciation
  • NMR-pH titration

ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry

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