caa a22 4500 46574768X CHVBK 20180323111825.0 cr unu---uuuuu 170327e19900101xx s 000 0 eng 10.1007/BF00322855 doi (NATIONALLICENCE)springer-10.1007/BF00322855 Coulometric titrations in microscale study of ionic equilibria [Elektronische Daten] [Adam Hulanicki, Stanislaw Głab] Summary: Coulometric titration, a well established technique in research and in routine analysis, can successfully be applied to the study of ionic equilibria in solution. Processes, where either lyate or lyonium ions serve as titrants, for determination of acids and bases, respectively, were investigated. Among the systems studied are: autoprotolytic equilibria of various amphiprotic solvents, acid-base equilibria in water, organic and mixed solvents and complexation reactions. In all these examples the titration was followed by a potentiometric pH-indicator electrode. In nonaqueous solvents coulometry overcame the limited solubility of electrolytes, the difficulty of standardization on solutions and the necessity of working in isolated systems to avoid contamination of the sample with water vapour or with carbon dioxide. Because volumes below 1 ml and concentrations in the order of 0.001 mol/l can be used, this technique can be successfully applied to the investigation of micromole amounts of compounds, when protolytic properties of substances available in minute quantities should be evaluated. Furthermore this technique was applied to the evaluation of protonation constants of biologically important buffers and the stability constants of their calcium complexes. Springer-Verlag, 1990 Hulanicki Adam Department of Chemistry, University of Warsaw, Pasteura 1, PL-02-093, Warsaw, Poland aut Głab Stanislaw Department of Chemistry, University of Warsaw, Pasteura 1, PL-02-093, Warsaw, Poland aut Fresenius' Journal of Analytical Chemistry Springer-Verlag 337/5(1990-01-01), 512-517 0937-0633 337:5<512 1990 337 216 https://doi.org/10.1007/BF00322855 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00322855 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hulanicki Adam Department of Chemistry, University of Warsaw, Pasteura 1, PL-02-093, Warsaw, Poland aut NATIONALLICENCE 700 1- Głab Stanislaw Department of Chemistry, University of Warsaw, Pasteura 1, PL-02-093, Warsaw, Poland aut NATIONALLICENCE 773 0- Fresenius' Journal of Analytical Chemistry Springer-Verlag 337/5(1990-01-01), 512-517 0937-0633 337:5<512 1990 337 216 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer