【摘 要】
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本文建立采用高效液相色谱-蒸发光散射检测(HPLC-ELSD)法同时测定大枣多糖酸性条件下水解产物中阿拉伯糖和D-半乳糖含量的方法。实验结果表明:制备的样品中阿拉伯糖和D-半乳
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本文建立采用高效液相色谱-蒸发光散射检测(HPLC-ELSD)法同时测定大枣多糖酸性条件下水解产物中阿拉伯糖和D-半乳糖含量的方法。实验结果表明:制备的样品中阿拉伯糖和D-半乳糖分离良好,阿拉伯糖和D-半乳糖分别在2.00-10.00 μg(r~2=0.9957)和2.08～10.40μg(r~2=0.9903)范围内呈良好的线性关系;平均加样回收率分别为103.87%(RSD=5.42%,n=9)和93.04%(RSD=4.90%,n=9)。该方法稳定性和重复性好,可为大枣质量评价和控制提供参考。
In this paper, a method for simultaneous determination of arabinose and D-galactose in hydrolysates of jujube polysaccharides by high performance liquid chromatography-evaporative light scattering (HPLC-ELSD) was established. The results showed that arabinose and D-galactose were well separated in the prepared samples with the molar ratio of arabinose and D-galactose being 2.00-10.00 μg (r ~ 2 = 0.9957) and 2.08 ~ 10.40 μg (r ~ 2 = 0.9903) The average recoveries were 103.87% (RSD = 5.42%, n = 9) and 93.04% (RSD = 4.90%, n = 9), respectively. The method has good stability and repeatability and can provide reference for quality evaluation and control of jujube.
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