Pregled bibliografske jedinice broj: 430891
Constant current chronopotentiometric stripping of sulphated polysaccharides
Constant current chronopotentiometric stripping of sulphated polysaccharides // Electrochemistry Communications, 11 (2009), 10; 2032-2035 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 430891 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Constant current chronopotentiometric stripping of sulphated polysaccharides
Autori
Strmečki, Slađana ; Plavšić, Marta ; Ćosović, Božena ; Ostatna, Veronika ; Paleček, Emil
Izvornik
Electrochemistry Communications (1388-2481) 11
(2009), 10;
2032-2035
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
Sulphated polysaccharides; i-Carrageenan; Catalysis of hydrogen evolution; Constant current chronopotentiometric stripping; Mercury electrode
Sažetak
We show that electrochemically inactive molecules of polysaccharide (PS), if carrying sulphated groups (e.g. i-carrageenan and dextran sulphate) produce in buffered solutions two well-developed chronopotentiometric peaks HPS and H0PS (due to catalytic hydrogen evolution) at hanging mercury drop electrode.Peak HPS of i-carrageenan displayed a striking increase at negative accumulation potentials, which was tentatively explained by uncoiling the PS double-helical structure at these potentials. Nanomolar concentrations of i-carrageenan can be determined at moderate accumulation times.
Izvorni jezik
Engleski
Znanstvena područja
Geologija
POVEZANOST RADA
Projekti:
098-0982934-2717 - Priroda organske tvari, interakcije s mikrokonstituentima i površinama u okolišu (Ciglenečki-Jušić, Irena, MZOS ) ( CroRIS)
Ustanove:
Institut "Ruđer Bošković", Zagreb
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
