Summary
High performance anion-exchange chromatography (HPAC) coupled with pulsed amperometric detection (PAD) under alkaline conditions (pH 13) separates neutral saccharides based upon their molecular size, saccharide composition, and glycosidic linkages. Carbohydrates were detected by oxidation with a gold-working electrode. HPAC-PAD was compared to high performance liquid chromatography (HPLC) with refractive index (RI) detection in terms of selectivity and sensitivity of saccharides. The results indicate that HPAC-PAD was more precise, two orders of magnitude more sensitive (pmol range) and gives better resolution of saccharides than HPLC-RI. HPAC-PAD required less sample preparation and was not subjected to matrix interferences. The use of HPAC-PAD was applied to the analysis of organic materials (plant residues, animal wastes and sewage sludge) and soil.
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Martens, D.A., Frankenberger, W.T. Determination of saccharides by high performance anion-exchange chromatography with pulsed amperometric detection. Chromatographia 29, 7–12 (1990). https://doi.org/10.1007/BF02261130
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DOI: https://doi.org/10.1007/BF02261130