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Reactivity-driven cleanup of 2-Aminobenzamide derivatized oligosaccharides. | LitMetric
N-glycan profiling is commonly accomplished by the derivatization of the enzymatically released oligosaccharides with a fluorophore, thereby facilitating their analysis by hydrophilic-interaction liquid chromatography (HILIC). These fluorescent dyes are often present in large excess during derivatization reactions, and their removal is typically required to minimize chromatographic interference. Herein, we report a reactivity-driven 2-phase extraction protocol with the aldehyde reagent octanal, which demonstrated efficient 2-aminobenzamide cleanup as well as high derivatized N-glycan recovery. This cleanup method can be performed within minutes, and therefore provides an alternative sample preparation route for N-glycan profiling with improved time efficiency and operational simplicity.
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