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Permethylation analysis is the classic approach to establishing the position of glycosidic linkages between sugar residues. Typically, the carbohydrate is derivatized to form acid-stable methyl ethers, hydrolyzed, peracetylated, and analyzed by gas chromatography-mass spectrometry. The position of glycosidic linkages in the starting carbohydrate are apparent from the mass spectra as determined by...
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