Naslov
Potentiometric titrations as a tool for surface charge determination

Autori
Lützenkirchen, Johannes ; Preočanin, Tajana ; Kovačević, Davor ; Tomišić, Vladislav ; Lövgren, Lars ; Kallay, Nikola

Izvornik
Croatica chemica acta (0011-1643) 85 (2012), 4; 391-417

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
surface charge ; potentiometric titration ; surface reaction ; pH measurement

Sažetak
This article summarizes methods for determining proton surface charge at mineral/water interfaces. It covers conventional experimental procedures and discusses problems with the techniques. Also it involves recommendations for obtaining reasonable and comparable results. The term “comparable results” refers to comparison between results for the same solid as obtained in different laboratories. The most important parameters for the surface titrations are discussed. We also propose a reference titration procedure that would allow direct, unbiased comparisons of experimental data. The article finally includes a check-list for researchers and reviewers which should allow limiting the amount of titration data that are not useful for future uses.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA