Related Experiment Video
Updated: Aug 18, 2026

Biological Samples Preparation for Speciation at Cryogenic Temperature using High-Resolution X-Ray Absorption Spectroscopy
Published on: May 27, 2022
[Study on application of crosslinked chitosan to the speciation analysis of selenium]
Abstract:
The adsorption of Se(IV)/Se(VI) by crosslinked chitosan was studied and the adsorption mechanism was concerned. The results indicated that the adsorption of Se(VI) was 95% at pH=4, while almost no adsorption for Se(IV). The adsorbed Se(VI) was quantitatively desorbed with 1 mol/L HCl after adsorption of Se(VI). A new method for the determination of trace Se(IV)/Se(VI) and organic selenium in environmental samples with hydride generation and atomic absorption spectphotometry has been developed. The detection limit of this method was 20 ng/L, the recovery was 93%-106% and the coefficient of variation was 2.0%-5.0%.
Related Concept Videos
Size-Exclusion Chromatography
Silica particles offer advantages such as rigidity,...
Extraction: Advanced Methods
Capillary Electrophoresis: Applications
Capillary zone electrophoresis (CZE) separates ionic components based on their electrophoretic mobility. It has been used to separate proteins, amino acids,...
Supercritical Fluid Chromatography
SFC utilizes a supercritical fluid mobile phase,...

