高等学校化学学报

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改进的PMP柱前衍生化方法用于单糖的组成分析

林雪1, 王仲孚1, 黄琳娟1, 白泉2, 贾敬芬1   

    1. 西北大学生命科学学院, 陕西省生物技术重点实验室, 西部资源生物与现代生物技术省部共建教育部重点实验室,
    2. 分离科学研究所, 西安 710069
  • 收稿日期:2005-12-02 修回日期:1900-01-01 出版日期:2006-08-10 发布日期:2006-08-10
  • 通讯作者: 王仲孚

An Improved PMP Derivatization Method for Analyzing Monosaccharide Composition

LIN Xue1, WANG Zhong-Fu1, HUANG Lin-Juan2, BAI Quan1, JIA Jing-Fen1   

    1. Life Science College, Key Laboratory of Ministry of Education for Western China Resource Biology and Biotechnology;
    2. Institute of Modern Separation Science, Northwest University, Xi'an 710069, China
  • Received:2005-12-02 Revised:1900-01-01 Online:2006-08-10 Published:2006-08-10
  • Contact: WANG Zhong-Fu

摘要: 用氨水替代NaOH溶液, 反应后氨水可通过减压干燥除去, 这样不仅简化了衍生化反应的后处理过程, 而且不影响衍生物的质谱分析, 省去了质谱分析前的脱盐处理过程. 本研究建立了5种常见单糖的分析分离模式, 对其进行质谱分析, 用所建立的方法对标准二糖及3种多糖样品中的单糖组成进行了分析, 取得了满意的结果.

关键词: HPLC, 1-苯基-3-甲基-5-吡唑啉酮(PMP), 衍生化,

Abstract: An improved carbohydrate derivatization method employing 1-phenyl-3-methyl-5-pyrazolone(PMP) was developed in this study. Liquid ammonia was used instead of sodium hydroxide aqueous solution to provide the base medium for the derivatization reaction. Derivatization reaction and HPLC separation conditions were optimized, including reaction time, reaction temperature and PMP consumption. The derivatives of five reducing monosaccharides were well separated by HPLC. Because we employed ammonia instead of sodium hydro-xide, the excessive volatile ammonia can be removed by vacumm drying, these derivatives could be directly analyzed by MALDI-TOF-MS without desalting procedure, possessing potential application for monosaccharide and oligosaccharide separation and subsequent MS analysis. This method not only increased the MS detection sensitivity, but also decreased sample wastes during purification. We successfully applied this method to mo-nosaccharide composition analysis of polysaccharides SPPA-1, SPPB-1 and SPPC-1 purified from Spirulina Platensis.

Key words: HPLC, 1-Phenyl-3-methyl-5-pyrazolone, Derivatization, Saccharide

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