Objavljeno v DiRROS: 18.05.2016; Ogledov: 3220; Prenosov: 425 Povezava na celotno besedilo
Ključne besede: magnetna polja, elektromagnetna polja, elektroenergetika, sevanje, fizika, varnost, standardi, priporočila, stopnja varstva, načela previdnosti, odredbeObjavljeno v DiRROS: 17.05.2016; Ogledov: 4279; Prenosov: 753 Povezava na celotno besedilo
Povzetek: 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%.Ključne besede: Silver particles, Square-wave voltammetry, Nitrite, Ionic liquid, Carbon paste electrodeObjavljeno v DiRROS: 16.02.2015; Ogledov: 4494; Prenosov: 500 Povezava na datoteko