气相色谱法测定新疆金鸡菊多糖中单糖的组成

曹志龙,马晓丽

武警医学 ›› 2012, Vol. 23 ›› Issue (10) : 848-850.

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PDF(572 KB)
武警医学 ›› 2012, Vol. 23 ›› Issue (10) : 848-850.
论著

气相色谱法测定新疆金鸡菊多糖中单糖的组成

  • 曹志龙1,马晓丽2
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Determination of monosaccharide composition in polysaccharides of Coreopsis basalis by gas chromatography

  • CAO Zhilong1 and MA Xiaoli2. 1. Department of Pharmacy,Xinjiang Production and Construction Corps Hospital of Chinese People’s Armed Police Forces,Urumqi 830063,China;2. Instrumental Analysis Center,Xinjiang Medical University,Urumqi 830002,China
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摘要

目的 采用柱前衍生气相色谱法测定新疆金鸡菊多糖中单糖的组成。方法 金鸡菊粗多糖经三氟乙酸水解后,采用糖腈乙酸酯衍生化方法,利用DM-5石英毛细管色谱柱(30 m×0.25 mm,0.25 μm)对金鸡菊多糖中的6种单糖衍生物进行分离测定, 6种单糖全部达到基线分离,总分析时间为45 min。用保留时间定性,外标法定量。方法线性范围为0.6~10 mg/ml,各标准曲线相关系数r>0. 9995;加样回收率为101.5% ~103. 4%。结果 金鸡菊粗多糖由鼠李糖、阿拉伯糖、木糖、甘露糖、葡萄糖和半乳糖组成,摩尔比为0.42∶2.51∶0.48∶0.83∶6.38∶2.07。结论 气相色谱法测定新疆金鸡菊多糖中单糖的组成具有简单、快速、分离效率高等特点,确定了新疆金鸡菊中单糖组成及其摩尔比,可为新疆金鸡菊的研究提供参考。

Abstract

Objective To establish a gas chromatographic method for determining the monosaccharide compositions and contents in polysaccharides of Coreopsis basalis. Methods Polysaccharides of Coreopsis basalis were derivatized after hydrolysis into monosaccharides with 4 mol/l TFA. Monosaccharide derivatives were separated on Shimadzu DM-5 column (30 m×0.25 mm,0.25 μm). The six monosaccharides were simultaneously separated under optimized conditions within 45 minutes. The calibration plots were linear over a range from 0.6 to 10 mg/ml. The recovery was 101.5%-103.4%. Results Polysaccharides of Coreopsis basalis consisted of Rha, Ara, Xyl, Man, Glu, and Gal with a molar ratio of 0.42∶2.51∶0.48∶0.83∶6.38∶2.07. Conclusions This method is simple, sensitive, accurate and reliable. It can be applied to quality control and determination of monosaccharide composition of Coreopsis basalis.

关键词

新疆金鸡菊 / 单糖 / 气相色谱

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曹志龙,马晓丽. 气相色谱法测定新疆金鸡菊多糖中单糖的组成[J]. 武警医学. 2012, 23(10): 848-850
CAO Zhilong and MA Xiaoli. . Department of Pharmacy,Xinjiang Production and Construction Corps Hospital of Chinese People’s Armed Police Forces,Urumqi,China;. Instrumental Analysis Center,Xinjiang Medical University,Urumqi,China. Determination of monosaccharide composition in polysaccharides of Coreopsis basalis by gas chromatography[J]. Medical Journal of the Chinese People Armed Police Forces. 2012, 23(10): 848-850
中图分类号: R931.5   

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