Published in DiRROS: 18.05.2016; Views: 3228; Downloads: 426 Link to full text
Keywords: magnetna polja, elektromagnetna polja, elektroenergetika, sevanje, fizika, varnost, standardi, priporočila, stopnja varstva, načela previdnosti, odredbePublished in DiRROS: 17.05.2016; Views: 4279; Downloads: 753 Link to full text
Abstract: A simple silver particle-modified carbon paste electrode is proposed for the determination of low concentration levels of nitrite ions. The electrode consists of a carbon powder decorated with silver sub-micrometre particles (AgPs) and a hydrophobic ionic liquid trihexyltetradecylphosphonium chloride as a binder. It has been shown that AgPs exhibit a strong electrocatalytic effect on the nitrite oxidation. For optimal electroanalytical performance the electrode was conditioned via silver oxidation/reduction cycle. The electrode revealed a linear square-wave voltammetric response in a wide examined concentration range of 0.05 to 1.0 mmol L− 1, limit of detection (LOD) of 3 μmol L− 1 and excellent repeatability with RSD of 0.3%.Keywords: Silver particles, Square-wave voltammetry, Nitrite, Ionic liquid, Carbon paste electrodePublished in DiRROS: 16.02.2015; Views: 4494; Downloads: 500 Link to file
