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  • Title: Liquid chromatographic determination of sugar alcohols in beverages and foods after nitrobenzoylation.
    Author: Nojiri S, Saito K, Taguchi N, Oishi M, Maki T.
    Journal: J AOAC Int; 1999; 82(1):134-40. PubMed ID: 10028682.
    Abstract:
    Use of p-nitrobenzoyl chloride (PNBC) to form an ultraviolet-absorbing derivative was attempted to determine the sugar alcohols meso-erythritol, xylitol, D-sorbitol, and D-mannitol by liquid chromatography (LC). LC determination of derivatives was performed on an ODS column with acetonitrile-water (65 + 35) as mobile phase. Calibration curves were linear in the concentration range 0.01-100 micrograms/mL. Method sensitivity is 10 to 1000 times higher than that of LC with refractive index detection and gas chromatography with flame ionization detection. Recoveries of sugars added to various foods at 0.1 and 1% ranged from 91 to 102% for meso-erythritol, 75 to 115% for xylitol, 81 to 105% for D-sorbitol, and 81 to 108% for D-mannitol.
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