MALDI Mass Spectrometry Using 2,4,6-Trihydroxyacetophenone and 2,4-Dihydroxyacetophenone with Cyclodextrins: Suppression of Matrix-related Ions in Low-molecular-weight Region

DOI PDF Web Site Web Site Web Site ほか1件をすべて表示 一部だけ表示 被引用文献6件 参考文献32件
  • FUJITA Takashi
    Department of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University
  • FUJINO Tatsuya
    Department of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University
  • HIRABAYASHI Kazunori
    Department of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University
  • KORENAGA Takashi
    Department of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University

この論文をさがす

抄録

Matrix-assisted laser desorption/ionization (MALDI) mass spectrometry of a model peptide, Substance P (SubP), was carried out using 2,4,6-trihydroxyacetophenone (THAP) and 2,4-dihydroxyacetophenone (DHAP) with cyclodextrins (cyclodextrin-supported matrix). It was found that the use of a cyclodextrin-supported matrix simplified the mass spectrum in the low-molecular-weight region. The interaction between THAP/DHAP and cyclodextrin (CD) was studied by UV-vis absorption spectroscopy and the incorporation of matrix molecules into the cyclodextrin cavity was confirmed by 1H-NMR spectroscopy. DHAP showed tight incorporation with βCD (βCD(DHAP)) rather than THAP and it was found that the matrix-related peaks could be weakened by less than one third of the peak intensity of a protonated analyte. The βCD(DHAP) matrix was applied to the measurements of two low-molecular-weight compounds; adenosine and adrenaline. It became clear that the cyclic structure of the CD and the host-guest interaction between βCD and the matrix molecule were important to reduce the matrix-related peaks of THAP and DHAP.

収録刊行物

  • Analytical Sciences

    Analytical Sciences 26 (7), 743-748, 2010

    社団法人 日本分析化学会

被引用文献 (6)*注記

もっと見る

参考文献 (32)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ