20.500.12556/RUL-134715 Development of the new fluoride ion-selective electrode modified with Fe$_x$O$_y$ nanoparticles A new modified ion-selective electrode with membranes of LaF$_3$ single crystals with different internal contacts (solid steel or electrolyte) and with Fe$_x$O$_y$ nanoparticles as loading was developed. The best response characteristic with linear potential change was found in the fluoride concentration range from 10$^{−1}$ to 3.98 × 10$^{−7}$ M. The detection limit for the electrolyte contact was determined at 7.41 × 10$^{−8}$ M with a regression coefficient of 0.9932, while the regression coefficient for the solid contact was 0.9969. The potential change per concentration decade ranged from 50.3 to 62.4 mV, depending on whether the contact was solid or electrolytic. The prepared modified electrode has a long lifetime, as well as the possibility of application in different positions (solid contact), and it can also be used for the determination of iron ions. The electrode characterization was performed with scanning electron microscopy and elemental analysis with the technique of electron-dispersive X-ray spectroscopy. fluoride ion-selective electrode nanoparticles modification ion-selective electrode fluoride metal nanoparticles internal contact elemental analysis fluoridna ionoselektivna eletroda nanodelci Fe$_x$O$_y$ modifikacije true false true Angleški jezik Slovenski jezik Članek v reviji 2022-01-27 12:24:33 2022-01-27 12:24:33 2022-09-14 04:09:30 0000-00-00 00:00:00 2020 0 0 13 str. iss. 21, art. 5213 Vol. 25 Nov. 2020 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 544.6.076.327:620.3 1420-3049 10.3390/molecules25215213 36710915 RAZ_Radic_Josip_2020.pdf RAZ_Radic_Josip_2020.pdf 1 0291BA5ECE6EB4A4C985B6BB1C18C8D2 96b18b5a2231309ff78d060d96ab5edcf4d016b90c868fc336cd3cbbf55bb4f8 ec6c427f-7f63-11ec-abdb-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=153308 https://www.mdpi.com/1420-3049/25/21/5213 0 7f588132-7f63-11ec-abdb-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=153307 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0