高等学校化学学报

高等学校化学学报 ›› 2013, Vol. 34 ›› Issue (5): 1106.doi: 10.7503/cjcu201200828

• 分析化学 • 上一篇    下一篇

应用MALDI-FTICRMS技术研究气相中含钨系列离子簇

徐锐锋1,2,3, 白云鹏1,4, 连文慧4, 刘舒1, 宋凤瑞1, 刘志强1, 刘淑莹1,4   

  1. 1. 中国科学院长春应用化学研究所, 长春质谱中心, 长春 130022;
    2. 中国科学院大学, 北京 100049;
    3. 中国计量科学研究院, 北京 100013;
    4. 长春中医药大学, 长春 130117
  • 收稿日期:2012-09-10 出版日期:2013-05-10 发布日期:2013-05-10
  • 通讯作者: 刘淑莹, 女, 博士, 研究员, 博士生导师, 主要从事质谱学研究. E-mail: syliu19@yahoo.com.cn E-mail:syliu19@yahoo.com.cn
  • 基金资助:

    国家自然科学基金(批准号: 21175127)和吉林省医药产业发展专项资金(批准号: YYZX201131)资助.

Tungstate-containing Clusters Ions in the Gas Phase by MALDI-FTICRMS

XU Rui-Feng1,2,3, BAI Yun-Peng1,4, LIAN Wen-Hui4, LIU Shu1, SONG Feng-Rui1, LIU Zhi-Qiang1, LIU Shu-Ying1,4   

  1. 1. Changchun Center of Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China;
    2. University of the Chinese Academy of Sciences, Beijing 100049, China;
    3. National Institute of Metrology, Beijing 100013, China;
    4. Changchun University of Chinese Medicine, Changchun 130117, China
  • Received:2012-09-10 Online:2013-05-10 Published:2013-05-10

PDF (PC)

摘要：

以Keggin型磷钨酸为原料, 2,5-二羟基苯乙酮(DHAP)和2,4,6-三羟基苯乙酮(THAP)为基质, 使用基质辅助激光解吸/电离-傅里叶变换离子回旋共振质谱(MALDI-FTICRMS)技术研究气相中金属相关簇的稳定性及气相离子-分子反应. 在气相中获得不同系列的-1价含钨离子簇, 准确确定各系列离子簇的组成及Magic Numbers物种, 并发现基质与钨相互作用生成有机-无机杂化离子簇系列. 结果表明, MALDI-FTICRMS技术适用于研究气相中团簇离子的稳定性及气相离子-分子反应.

关键词: 含钨离子簇, MALDI-FT质谱, Magic Numbers, 基质

Abstract:

Singly negatively charged tungstate ion clusters were produced by phosphotungstic anions using 2,5-dihydroxyacetophenone(DHAP) and 2,4,6-trihydroxyacetophenone(THAP) as matrices under matrix-assisted laser desorption/ionization Fourier transform ion cyclotron resonance mass spectrometry(MALDI-FTICR MS). Their gas-phase stability and cluster ion-molecule reactions were studied. It was found that the ion series [(PO3)(WO3)n]-, [(OH)(WO3)n]- and [(C8H5Ox)(WO3)n]- were the main ion series in the mass spectra. The composition and magic numbers of cluster ions were determined. Additionally, the series of hybrid ion clusters were produced through the reaction of matrices and tungstate in the plume of the gas phase. These results highlight the utility of the MALDI-FTICR method for obtaining novel ion clusters and also show the stability of these clusters.

Key words: Tungsten-containing ion cluster, MALDI-FTICR MS, Magic number, Matrix

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