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Pregled bibliografske jedinice broj: 629929

Voltammetric Study of Uranyl-Selenium Interactions. Part 2. Uranyl(V) Selenate Complex


Zelić, Marina; Pižeta, Ivanka; Djogić, Renata
Voltammetric Study of Uranyl-Selenium Interactions. Part 2. Uranyl(V) Selenate Complex // Croatica chemica acta, 86 (2013), 1; 21-26 doi:10.5562/cca1952 (međunarodna recenzija, članak, znanstveni)


CROSBI ID: 629929 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Voltammetric Study of Uranyl-Selenium Interactions. Part 2. Uranyl(V) Selenate Complex

Autori
Zelić, Marina ; Pižeta, Ivanka ; Djogić, Renata

Izvornik
Croatica chemica acta (0011-1643) 86 (2013), 1; 21-26

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
uranyl; selenate; square wave voltammetry; complex formation; stability constants

Sažetak
Under the influence of recently published papers and some older own results, complex formation in uranyl(VI)-selenium(VI) system was reinvestigated at the ionic strengths of 0.1 and 3.0 mol/L. Using electrolyzed selenate solutions (and square-wave voltammetry as a measuring technique) two coordination species at the higher electrolyte concentration (log β1 = 1.48 ± 0.01, log β2 = 2.4 ± 0.1) were recognized, in agreement with the literature data based on other experimental methods. For successful interpretation of the voltammetric data, previously unknown weak complex (log β01=0.7 ± 0.1) of the reduction product, i.e. uranyl(V) should also be included in the model. At the lower electrolyte concentration (0.1 mol/L), formation of complexes other than UO2SeO40 cannot be unambiguously confirmed due to the narrow ligand concentration range. Concerning the number of coordination species and their stability constants, seemingly different results that arise from voltammetry and other (independent) experimental methods reflect the fact that the former, in addition to the complexation of initially present metal ion, “sees” the coordination of its reduction product with the ligand of interest, too. When both processes are taken into account during treatment of voltammetric data, such differences disappear.

Izvorni jezik
Engleski

Znanstvena područja
Geologija, Kemija



POVEZANOST RADA


Projekti:
098-0982904-2907 - Elektroanalitička istraživanja mikrokristala i tragova otopljenih supstanci (Lovrić, Milivoj, MZOS ) ( POIROT)
098-0982934-2720 - Međudjelovanja oblika tragova metala u vodenom okolišu (Pižeta, Ivanka, MZOS ) ( POIROT)

Ustanove:
Institut "Ruđer Bošković", Zagreb

Profili:

Avatar Url Marina Zelić (autor)

Avatar Url Renata Đogić (autor)

Avatar Url Ivanka Pižeta (autor)

Poveznice na cjeloviti tekst rada:

doi Hrčak dx.doi.org

Citiraj ovu publikaciju:

Zelić, Marina; Pižeta, Ivanka; Djogić, Renata
Voltammetric Study of Uranyl-Selenium Interactions. Part 2. Uranyl(V) Selenate Complex // Croatica chemica acta, 86 (2013), 1; 21-26 doi:10.5562/cca1952 (međunarodna recenzija, članak, znanstveni)
Zelić, M., Pižeta, I. & Djogić, R. (2013) Voltammetric Study of Uranyl-Selenium Interactions. Part 2. Uranyl(V) Selenate Complex. Croatica chemica acta, 86 (1), 21-26 doi:10.5562/cca1952.
@article{article, author = {Zeli\'{c}, Marina and Pi\v{z}eta, Ivanka and Djogi\'{c}, Renata}, year = {2013}, pages = {21-26}, DOI = {10.5562/cca1952}, keywords = {uranyl, selenate, square wave voltammetry, complex formation, stability constants}, journal = {Croatica chemica acta}, doi = {10.5562/cca1952}, volume = {86}, number = {1}, issn = {0011-1643}, title = {Voltammetric Study of Uranyl-Selenium Interactions. Part 2. Uranyl(V) Selenate Complex}, keyword = {uranyl, selenate, square wave voltammetry, complex formation, stability constants} }
@article{article, author = {Zeli\'{c}, Marina and Pi\v{z}eta, Ivanka and Djogi\'{c}, Renata}, year = {2013}, pages = {21-26}, DOI = {10.5562/cca1952}, keywords = {uranyl, selenate, square wave voltammetry, complex formation, stability constants}, journal = {Croatica chemica acta}, doi = {10.5562/cca1952}, volume = {86}, number = {1}, issn = {0011-1643}, title = {Voltammetric Study of Uranyl-Selenium Interactions. Part 2. Uranyl(V) Selenate Complex}, keyword = {uranyl, selenate, square wave voltammetry, complex formation, stability constants} }

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


Citati:





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