Pregled bibliografske jedinice broj: 81085
Preceding chemical reactions in dc polarography:: different approaches to the analysis of the carbonyl compounds dehydration kinetics
Preceding chemical reactions in dc polarography:: different approaches to the analysis of the carbonyl compounds dehydration kinetics // Journal of electroanalytical chemistry (1992), 531 (2002), 2; 147-154 doi:10.1016/S0022-0728(02)01051-3 (međunarodna recenzija, članak, znanstveni)
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Naslov
Preceding chemical reactions in dc polarography::
different approaches to the analysis of the
carbonyl compounds dehydration kinetics
Autori
Tur`yan, Yakov ; Lovrić, Milivoj
Izvornik
Journal of electroanalytical chemistry (1992) (1572-6657) 531
(2002), 2;
147-154
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
Dc polarographic limiting kinetic and diffusion currents ; dehydration rate constants ; acetaldehyde ; pyruvic acid (model) ; formaldehyde ; glyoxylic acid (anion)
Sažetak
It is shown that many dehydration rate constant of carbonyl compounds found by various kinetic approaches to dc polarography are overestimated. This anomaly is connected neither with the adsorption effects, nor with neglecting the spherical diffusion. It is caused by the influence of the diffusion contribution to the total limiting kinetic current of the depolizer from the solution bulk. Quantitative consideration of thois effect has allowed us to obtain the correct rate constant under steady-stae conditions, independently of the degree of the diffusion contribution.
Izvorni jezik
Engleski
Znanstvena područja
Kemija
POVEZANOST RADA
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
