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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

Miko, Slobodan ; Šparica, Martina ; Prohić, Esad Some problems of selenium analysis in the organic rich recent sediments (pelleoids), Pirovac bay, Croatia. // Erdwissenschaftliche Aspekte des Umweltschutzes, Tagungsband / Sauer, Deits (ur.). Beč: Österriechisches Forschungs- und Prüfzentrum Arsenal Ges. m. b., 1998. str. 297-302-x

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

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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, UG’98 Beč, Austrija

poster

22.04.1998-25.04.1998

Beč, Austrija

Povezanost rada

Geologija