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Trace analysis of sugars by HPLC and post-column derivatization

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Summary

A HPLC system with post-column derivatization for the quantitative analysis of sugars in complex matrices is described. As reagent a 0.2% solution of thymol in concentrated sulfuric acid has been used. The reaction is sensitive with reducing as well as non reducing sugars whereas sugar alcohols are discriminated. With this reagent and separation of sugars at high pH values with an anion exchange column it is possible to detect sugars in the ng range. Hence, it is possible to characterize wines not only by their fructose and glucose content but also by differences in the distribution of the other not fermentable sugars like trehalose, arabinose, galacturonic and glucuronic acid.

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Authors and Affiliations

  1. Angewandte Physikalische Chemie, Universität des Saarlandes, 6600, Saarbrücken, FRG

    H. Engelhardt & P. Ohs

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  1. H. Engelhardt
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  2. P. Ohs
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Engelhardt, H., Ohs, P. Trace analysis of sugars by HPLC and post-column derivatization. Chromatographia 23, 657–662 (1987). https://doi.org/10.1007/BF02311495

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  • DOI: https://doi.org/10.1007/BF02311495

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