亲水相互作用色谱-高分辨质谱分析不同糖胺聚糖寡糖  被引量:6

Hydrophilic Interaction Liquid Chromatography-QuadrupoleTime-of-Flight Mass Spectrometry for Analysis of Glycosaminoglycan Oligosaccharides

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作  者:吴成玲[1] 刘建芬 张真庆[1] 

机构地区:[1]苏州大学药学院,苏州215123 [2]协和制药,石家庄050083

出  处:《分析化学》2015年第8期1198-1202,共5页Chinese Journal of Analytical Chemistry

基  金:国家自然科学基金(No.81473179)资助~~

摘  要:建立了亲水相互作用-液相色谱-质谱联用分析糖胺聚糖类复杂样品的方法。在高分辨质谱联用条件下,流动相5 mmol/L醋酸铵缓冲溶液可有效使用。在此基础上,对不同的色谱柱进行了筛选。其中,氨基亲水相互作用色谱柱对糖胺聚糖类寡糖的分离效果不佳;酰胺基亲水相互作用色谱柱仅适用于透明质酸寡糖的分析,可以有效分离聚合度2~20的透明质酸寡糖;在较高温度下,两性离子基质的亲水相互作用色谱柱可以对聚合度2~30的透明质酸寡糖和聚合度2~12的硫酸软骨素寡糖有效分离;而二醇基亲水相互作用色谱柱对透明质酸(聚合度2~30)、硫酸软骨素(聚合度2~20)以及肝素(聚合度4~20)都适用,并呈现出较好的分离效果。本研究比较了不同类型的亲水相互作用色谱结合高分辨质谱对不同聚合度、不同电荷密度的糖胺聚糖寡糖的分离特点,建立了相应的高效分离和分析方法。本方法有较高的分辨率和质谱适用性。A hydrophilic interaction liquid chromatography (HILIC)-mass spectrometric (MS) method was developed for the analysis of glycosaminoglycan (GAG) oligosaccharides. By using 5 mmol/L NH4Ac as the mobile phase which was compatible with MS, four types of HILIC columns were investigated to analyze GAG oligosaccharides. The results showed that, amino-HILIC column was unsuitable for all glycosaminoglycan (GAG) oligosaccharides, amide-HILIC column was useful only for hyaluronan oligosaccharides from dp2 to dp20, zwitterionic phase HILIC column was useful for hyaluronan oligosaccharides from dp2 to dp30 and to a lesser extent for chondroitin oligosaccharides from dp2 to dpl2, and diol-HILIC column afforded excellent resolution of hyaluronan ( dp2 - dp30 ), chondroitin sulfate ( dp2 - dp20 ) and heparin ( dp4 - dp20 ) oligosaccharides. In conclusion, different HILIC columns were investigated and on the basis of this, GAG oligosaccharides were separated and then analyzed by HILIC- MS method. The developed methods have higher resolution and better compatibility of MS.

关 键 词:亲水相互作用色谱 四极杆/时间飞行质谱 糖胺聚糖 寡糖 

分 类 号:R917[医药卫生—药物分析学] O657.63[医药卫生—药学]

 

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