title: Fast and efficient separation of cytokinins from auxin and abscisic acid and their purification using mixed-mode solid-phase extraction .
abstract: A method for separation of cytokinins from auxin and abscisic acid, which allows further separation of cytokinin ribotides from cytokinin bases, ribosides and glucosides and their purification on a single Oasis MCX column was developed. Due to the mixed reversed-phase and cation-exchange mode of the Oasis MCX sorbent the cationic cytokinin bases, ribosides and glucosides as well as the anionic auxin, abscisic acid and cytokinin ribotides are retained and can be sequentially eluted by solvents containing different concentrations of methanol and ammonium hydroxide. Characteristics of the method are high recoveries of analyzed phytohormones and their sufficient purity for quantification by HPLC-ELISA (RIA) or HPLC-MS.
authors: Institute of Experimental Botany, Academy of Sciences of the Czech Republic, Praha.
authors: Petre Ivanov
authors: PI
authors: Dobrev
authors: Miroslav
authors: M
authors: Kamínek
mesh_terms: D000040:Abscisic Acid / Q000302:isolation & purification*; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D003583:Cytokinins / Q000302:isolation & purification*; D004797:Enzyme-Linked Immunosorbent Assay / Q000379:methods*; D007210:Indoleacetic Acids / Q000302:isolation & purification*; D013058:Mass Spectrometry / Q000379:methods*
chemical_list: D003583:Cytokinins; D007210:Indoleacetic Acids; D000040:Abscisic Acid