Anal. Method Environ. Chem. J. 4 (1) (2021) 36-45
44
biosorption of selenium (IV) ions onto
4. Conclusions
Ganoderma Lucidum Biomass, Sep. Sci.
Tech., 48 (2013) 2293-2301.
In this study, the results showed tetravalent
selenium ions (Se IV) biosorption were successfully
achieved by DAS from contaminated aqueous
solutions. The maximum removal of Se(IV) ions
was 96% at optimized experimental conditions
by SPE/F-AAS. The interaction between Se(IV)
ions and functional groups of DAS surface was
exothermic. The experimental data were fitted to
Freundlich isotherm. Also the speciation Se(IV)
and Se (VI) ions determined based on DAS by SPE
procedure for 0.5 g of DAS at pH=5. The method
was validated by ET-AAS and HG-AAS. The
absorption capacities for Se(IV) and Se (VI) ions
with DAS were achieved 124.2 mg g-1 and 121.8
mg g-1, respectively.
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The authors would like to thank from Department
of Chemistry, Kerman Branch, Islamic Azad
University, Kerman, Iran.
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