20.500.12556/DKUM-70684 Optimizacija in validacija cu modificirane elektrode iz steklastega ogljika za analizo Pb(ii) Optimization and validation of cu modified glassy carbon electrode for Pb(ii) analysis Namen diplomskega dela je bila optimizacija in validacija Cu modificirane elektrode iz steklastega ogljika za analizo Pb(II). Raziskavo smo začeli z določevanjem meje zaznavnosti (LOD) in meje določljivosti (LOQ), nadaljevali smo z določevanjem linearnosti metode in na koncu smo preverili še točnost in natančnost metode. Za analizo Pb(II) smo uporabili square-wave anodno striping voltametrijo (SWASV), za preverjanje ali naša elektroda deluje pravilno pa smo uporabili metodo ciklične voltametrije (CV). Raziskavo smo opravljali pri treh različnih potencialih depozicije in sicer pri 0,6 V, 0,7 V in 0,8 V. LOD metode nismo mogli določiti pri noben potencialu medtem ko smo LOQ določili pri koncentraciji 2 g/L in to pri vseh treh potencialih. Linearen odziv metode pri potencialu 0,6 V je v območju med 1,85 g/L in 40,86 g/L, pri drugih dveh potencialih pa v območju med 1,85 g/L in 58,18 g/L. Ugotovili smo, da je metoda točna in natančna pri potencialu depozicije 0,7 V in 0,8 V. The purpose of this thesis is optimization and validation of Cu modified glassy carbon electrode for Pb(II) analysis. The validation began with determination of the limit of detection (LOD) and the limit of quantification (LOQ). We continued with determination of linearity and concluded with determination of accuracy and precision. Square-wave anodic stripping voltammetry (SWASV) was used for Pb (II) analysis and cyclic voltammetry (CV) was use to test if our electrode is working correct. Research was made at three different deposition potencials, at 0,6 V, 0,7 V and 0,8 V. The LOD we could not determine at any deposition potencial while the LOQ was determine at contetration of 2 g/L for all deposition potencials. Linear response at 0,6 V deposition potencial was from 1,85 g/L to 40,86 g/L and at the other two depositio potencials was from 1,85 g/L in 58,18 g/L. Method is the most accurate and precise at 0,7 V and 0,8 V deposition potencials. Elektroda iz steklastega ogljika modificirana Cu-elektroda analiza težkih kovin voltametrija anodna striping voltametrija svinec Glassy carbon electrode Cu modified electrode heavy metals analysis voltammetry anodic stripping voltammetry lead true true false [Ž. Šašek] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2018-06-06 10:39:50 2018-08-03 12:06:38 2022-08-01 19:40:45 2019-07-11 18:16:07 2018 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 66.011:539.213(043.2) 21619478 URN:SI:UM:DK:QX8MGOC9 VS_Sasek_Zan_2018.pdf VS_Sasek_Zan_2018.pdf 1 1D092EB43949E78E10110BD99E72077B 4569573e0879a4397ab46188e41617101aaed1c5873149538a51001df4931bb3 2678eab1-7c10-11eb-bb7a-00155d0001ca 20.500.12556/dkum/e2ee47de-86b8-4fdc-aa6a-9e4b43d0a8be https://dk.um.si/Dokument.php?lang=slv&id=126921 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0