Potentiometric behavior of ion-selective electrodes to large cationic species modulated by decyl alcohol

Autor:	Marcela D. Urzúa, Hernán E. Ríos, Marianne A. Kaempfe, Walton J. Cabrera
Rok vydání:	2006
Předmět:	Aqueous solution Potentiometric titration Inorganic chemistry Cationic polymerization Ionic bonding Surfaces Coatings and Films Electronic Optical and Magnetic Materials Ion Biomaterials chemistry.chemical_compound Colloid and Surface Chemistry Membrane 1-Decanol chemistry Selectivity
Zdroj:	JOURNAL OF COLLOID AND INTERFACE SCIENCE Artículos CONICYT CONICYT Chile instacron:CONICYT
ISSN:	0021-9797
Popis:	The effect of 1-decanol on the potentiometric response of three ion-selective electrodes to large cationic species is analyzed. The electrodes were constructed with plasticized PVC membranes. The results suggest that 1-decanol alters the ionic transport through the membrane/water interface to an extent that depends on the strength of the active ion pair. The water solubility of the cation, its molecular weight, and the size of the ion pair seem to be relevant factors in this type of behavior. The potentiometric selectivity coefficients are also dependent on the presence of 1-decanol in the membrane. These results are similar to those already described in ion-selective electrodes with membranes capable of sensing anionic benzene sulfonate-type systems. Thus, the effect of the alcohol appears to be general by affecting mainly the membrane surface polarity.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e56a44657a66fecff334d89e11de2a52 https://doi.org/10.1016/j.jcis.2005.07.061 Zobrazit plný text záznamu Full Text from ScienceDirect