• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of mass spectrometry: JMS >A comparative study of the electrospray ionization response of beta-O-4 ' lignin model compounds
【24h】

A comparative study of the electrospray ionization response of beta-O-4 ' lignin model compounds

机译：β-O-4'LIGNIN模型化合物电喷雾电离应答的对比研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Electrospray ionization mass spectrometry has recently become the technique of choice for rapid characterization of lignin degradation products. However, the fundamental question of the relationship between lignin structure and ionization efficiency has not been explored. In this work, we studied the electrospray ionization response of five structurally similar beta-O-4 ' model lignin compounds using lithium cationization in the positive electrospray ionization mode. The studied compounds have the same beta-O-4 ' backbone structure but differ at the alpha-position by increasing nonpolar side chains. Our results show a correlation between the ionization response and the length of the nonpolar side chain, with analytes having the longest side chain recording the highest ESI response in the full scan mode. Factors affecting the formation of analyte ions and analyte cluster ions were also studied. We have shown for the first time in this work that the introduction of a nonpolar group onto a beta-O-4 ' lignin compound can increase the lithium cationization ESI response in the positive ion mode.
机译：电喷雾电离质谱最近成为木质素降解产物的快速表征的选择技术。然而，尚未探讨木质素结构与电离效率之间关系的基本问题。在这项工作中，我们研究了使用锂阳离子化在阳性电喷雾电离模式中的五种结构相似的β-O-4'模型木质素化合物的电喷雾电离响应。所研究的化合物具有相同的β-O-4'骨架结构，但通过增加非极性侧链在α位置不同。我们的结果显示了电离响应与非极性侧链的长度之间的相关性，分析物具有最长的侧链在全扫描模式下记录最高的ESI响应。还研究了影响分析物离子和分析物簇离子的形成的因素。我们在这项工作中首次示出了将非极性组引入β-O-4'木质素化合物中的抗体可以增加正离子模式中的锂阳离子ESI响应。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号