20.500.12556/DKUM-79529 Uporaba eksperimentalnega načrta za določitev vplivnih parametrov na analitske lastnosti antimonove elektrode magistrsko delo The use of the experimental design for determining the effect of parameters on analytical properties of antimony electrode V magistrskem delu smo izvedli delno validacijo osmih elektrod iz steklastega ogljika z in-situ pripravljeno prevleko iz antimona (Sb-FGCE) za simultano določevanje Zn(II), Cd(II) in Pb(II) ionov v sledovih. Uporabili smo trielektrodni sistem. Kot delovno elektrodo (WE) smo uporabili Sb-FGCE, kot referenčno elektrodo smo uporabili Ag/AgCl elektrodo, kot pomožno elektrodo pa smo uporabili platinasto žico. S ciklično voltametrijo smo preverjali reverzibilnost in difuzijsko kontrolo WE v raztopini K3[Fe(CN)6]. S tehniko angl. square-wave anodno striping voltametrijo (SWASV) smo določevali mejo zaznavnosti, mejo določljivosti, linearna koncentracijska območja, točnost, natančnost in občutljivost metod. S pomočjo razširjenega delnega dvonivojskega eksperimentalnega načrta smo načrtovali in izvedli osem eksperimentov. Z njegovo pomočjo smo ugotavljali, ali imajo različni faktorji zasnove SWASV-metode (potencial nalaganja, čas nalaganja, potencialni korak, amplituda, frekvenca in masna koncentracija Sb(III) ionov) signifikanten vpliv na validacijske parametre metode. For the purposes of this master thesis, eight in-situ glassy carbon electrodes with antimony coating (Sb-FGCE) were partially validated for simultaneously determining Zn(II), Cd(II) and Pb(II) ion in trails. The three-electrode system was used. Sb-FGCE was used as a working electrode (WE), Ag/AgCl was used as a reference electrode and a platinum wire was used as a counter electrode. Reversibility and diffusion control of WE in K3[Fe(CN)6] solution was examined with cyclic voltammetry. With square-wave anodic stripping voltammetry (SWASV), limit of detection, linear concentration range, accuracy, precision and sensitivity of the methods were determined. Eight experiments were designed and carried out with the use of the expanded two-level Experimental design, with which we determined whether different factors of the SWASV method (deposition potential, deposition time, potential step, amplitude, frequency and mass concentration of Sb(III) ions) have a significant influence on validation parameters. Eksperimentalni načrt CV SWASV kronoamperometrija Sb-GCE analiza v sledovih Experimental design CV SWASV Chronoamperometry Sb-GCE trace analysis true true false [D. Arbeiter] Slovenski jezik Angleški jezik Magistrsko delo/naloga 2021-07-15 12:10:49 2022-03-24 08:38:00 2022-08-09 21:37:59 0000-00-00 00:00:00 2022 0 Maribor 0 Maribor 1 spletni vir (1 datoteka PDF (XII, 47 f.)) 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 544.6.076.32-033.5(043.2) 102911491 MAG_Arbeiter_Damjan_2022.pdf MAG_Arbeiter_Damjan_2022.pdf 1 F49F88DDB73A9D174C83945CAF1E4BDC 989d82c267c14518c4997ca6cb770b5e12111563e85ce716a48b27437f91ffc9 9539f5d2-aae1-11ec-93d0-00155d000105 20.500.12556/dkum/92de3650-081a-4bc1-99a0-3d971fd281af https://dk.um.si/Dokument.php?lang=slv&id=156956 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0