Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7615424 | Journal of Chromatography B | 2018 | 8 Pages |
Abstract
The hydrophilic interaction liquid chromatography (HILIC) coupled to mass spectrometry was employed to study retention behavior of selected selenium compounds using two different HILIC stationary phases: silica and zwitterionic. Two organic solvents - acetonitrile and methanol - were compared as a component of mobile phase. Separation parameters such as a content of organic modifier, the eluent pH and inorganic buffer concentration were investigated. Based on all observations, methanol seems to be beneficial for the separation of studied compounds. The optimal HILIC separation method involved silica column and eluent composed of 85% MeOH and CH3COONH4 (8â¯mM, pHâ¯7) was compared to RP method in terms of time of the single run, the separation efficiency and limit of detection.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Aleksandra Sentkowska, Krystyna Pyrzynska,