Some problems of selenium analysis in the organic rich recent sediments (pelleoids), Pirovac bay, Croatia. (CROSBI ID 471744)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Miko, Slobodan ; Šparica, Martina ; Prohić, Esad
engleski
Some problems of selenium analysis in the organic rich recent sediments (pelleoids), Pirovac bay, Croatia.
Standard digestion techniques utilized at IGI (Institute of Geology) for environmental studies of other trace elements where tested for Se analysis of recent organic matter- carbonate rich sediments. The Se content was determined by hydride generation ICP atomic emission spectrometry after extraction of sediment Se by three different dissolution techniques: 7 mol HNO3 digestion, aqua regia digestion and the acid mixture HF-HCl-HNO3. The concentrations of Se extracted ranged from 0.19 to 0.31 mg kg-1 Se by 7 mol HNO3 digestion, from 0.27 to 0.35 mg kg-1 Se by hot aqua regia digestion and from 0.42 to 0.76 mg kg-1 Se by closed microwave HF-HCl-HNO3 digestion. The large differences in Se concentrations between aqua regia and HF-HCl-HNO3 digestion can be probably attributed to impedance of hydride-forming process that occurs due to the incompletely digested organic material from organic-rich samples by aqua regia.
Selenium; recent organic matter- carbonate rich sediments; hydride generation; ICP-AES; Pirovac bay; Croatia
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
Podaci o prilogu
297-302-x.
1998.
objavljeno
Podaci o matičnoj publikaciji
Erdwissenschaftliche Aspekte des Umweltschutzes, Tagungsband
Sauer, Deits
Beč: Österriechisches Forschungs- und Prüfzentrum Arsenal Ges. m. b.
Podaci o skupu
4. Arbaitstagung des Brereiches Umwelt, Erdwissenschaftliche Aspekte des Umweltschutzes, UG98 Beč, Austrija
poster
22.04.1998-25.04.1998
Beč, Austrija