Ionization Mechanism in Surface Plasmon Enhanced Laser Desorption/Ionization

• Nagoshi Keishiro

  Department of Chemistry, Tokyo Metropolitan University, Japan

• Sakata Kazuhiro

  Department of Chemistry, Tokyo Metropolitan University, Japan

• Shibamoto Kohei

  Department of Chemistry, Tokyo Metropolitan University, Japan

• Korenaga Takashi

  Department of Chemistry, Tokyo Metropolitan University, Japan

抄録

We researched contribution of a charge transfer (CT) effect to desorption/ionization mechanism in our ultra-high sensitive laser desorption/ionization mass spectrometry based on surface plasmon (SP) excitation (SPLDI-MS). A quantity of CT electrons between a metal surface and sample molecules estimated from Raman measurement is correlated to a mass signal intensity of sample molecule in our SPLDI-MS method. A sample system with a larger quantity of CT electrons gave a higher mass signal intensity. Efficient use of the CT effect would lead to development of a higher sensitive SPLDI-MS and this development would contribute to advancement of various fields. [DOI: 10.1380/ejssnt.2009.93]

収録刊行物

• e-Journal of Surface Science and Nanotechnology

  e-Journal of Surface Science and Nanotechnology 7 93-96, 2009

  公益社団法人 日本表面真空学会

キーワード

• Gold nanoparticles
• Laser desorption/ionization
• Surface plasmon
• Surface-enhanced Raman scattering
• Charge transfer effect

詳細情報

• CRID: 1390282680163699840
• NII論文ID: 130004439125
• DOI: 10.1380/ejssnt.2009.93
• ISSN: 13480391
• Web Site: http://www.jstage.jst.go.jp/article/ejssnt/7/0/7_0_93/_pdf
• 本文言語コード: en
• データソース種別:
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  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可