The use of graph-theoretical models to evaluate two electroanalytical methods for determination of stability constants
Summary: Stability constants K1 and b2 of copper(II) complexes with alanine and its five N-alkylated and N,N-dialkylated derivatives were measured by glass electrode potentiometry (GEP) and square wave voltammetry (SWV) and evaluated using graph-theoretical models. Correlations with the connectivity...
| Permalink: | http://skupni.nsk.hr/Record/nsk.NSK01000716673/Details |
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| Matična publikacija: |
Croatica chemica acta 81 (2008), 3 ; str. 511-517 |
| Glavni autor: | Raos, Nenad (-) |
| Ostali autori: | Branica, Gina, kemičarka (-), Miličević, Ante, inženjer kemije |
| Vrsta građe: | Članak |
| Jezik: | eng |
| Predmet: | |
| Online pristup: |
CROATICA CHEMICA ACTA |
| LEADER | 02220caa a2200313 ir4500 | ||
|---|---|---|---|
| 001 | NSK01000716673 | ||
| 003 | HR-ZaNSK | ||
| 005 | 20210301151805.0 | ||
| 007 | ta | ||
| 008 | 091020s2008 ci ||| ||eng | ||
| 035 | |9 (HR-ZaNSK)719243 | ||
| 035 | |a (HR-ZaNSK)000716673 | ||
| 040 | |a HR-ZaNSK |b hrv |c HR-ZaNSK |e ppiak | ||
| 041 | 0 | |a eng |b hrv | |
| 042 | |a croatica | ||
| 080 | |a 54 |2 MRF 1998. | ||
| 100 | 1 | |a Raos, Nenad | |
| 245 | 1 | 4 | |a The use of graph-theoretical models to evaluate two electroanalytical methods for determination of stability constants / |c Nenad Raos, Gina Branica and Ante Miličević. |
| 300 | |b Ilustr. | ||
| 504 | |a Bibliografija: 32 jed. | ||
| 504 | |a Sažetak | ||
| 520 | 8 | |a Summary: Stability constants K1 and b2 of copper(II) complexes with alanine and its five N-alkylated and N,N-dialkylated derivatives were measured by glass electrode potentiometry (GEP) and square wave voltammetry (SWV) and evaluated using graph-theoretical models. Correlations with the connectivity index of the 3rd order, 3cv, show that log K1(GEP) values were better reproduced than log K1(SWV) values; S.E. = 0.18–0.16 vs. 0.29–0.35, respectively. The opposite is true for log b2 (S.E. = 0.51–0.56 vs. 0.39–0.47 for GEP and SWV, respectively). By applying three criteria – 1) difference between GEP and SWV values, 2) difference between SWV and theoretical values, and 3) correlation of experimental error (S.E.exp) to the difference between experimental and theoretical values – it was possible to determine three experimental log K1(SWV) values as problematic. This report demonstrates the value of recently developed graph-theoretical models in planning the experiments and discussing their results | |
| 653 | 0 | |a Konstante stabilnosti |a Graf |a Teorija grafova |a Graf-teorijski model |a Elektroanalitičke metode |a Potenciometrija |a Elektrode |a Pravokutno valna voltametrija | |
| 700 | 1 | |a Branica, Gina, |c kemičarka | |
| 700 | 1 | |a Miličević, Ante, |c inženjer kemije | |
| 773 | 0 | |t Croatica chemica acta |x 0011-1643 |g 81 (2008), 3 ; str. 511-517 |w nsk.(HR-ZaNSK)000001621 | |
| 981 | |b B09/08 |p CRO | ||
| 998 | |a rado091020 |c vol2o120830 |b mili2012 | ||
| 856 | 4 | 2 | |u http://public.carnet.hr/ccacaa/ |y CROATICA CHEMICA ACTA |