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Base peak and extracted ion electropherograms for APTS labeled glucose ladder standard (G1–G24, referring to the number of glucose monosaccharides in each oligosaccharide) using optimized conditions (BGE 2.0% formic acid, 30% methanol; separation potential −16 kV). Copyright 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
