Comparative Study of Laser Spray and Electrospray Using an Orthogonal TOF Mass Spectrometer (BMS特集号)
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概要
- 論文の詳細を見る
The laser spray developed in our laboratory was applied to the analysis of biological samples. Because a 10.6 mm laser excites hydrogen bonds of water solvent, vaporization of aqueous samples takes place effectively by the laser irradiation. This makes laser spray superior to ESI for aqueous sample solution. The sensitivity of laser spray is approximately ten times higher than that of ESI for a large number of samples. The increase of signal intensities for both laser spray and ESI was observed by the addition of ammonium acetate to the sample solutions. This result was interpreted by an electrical double layer model proposed by Enke et al. The concentration of analyte ions in laser-sprayed droplets is estimated to be 10 times higher than that in the electrosprayed droplets. Noncovalent complexes were dissociated selectively to subunits by laser irradiation without dissociating the covalent bonds.
- 日本質量分析学会の論文
- 2005-06-01
著者
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Akashi Satoko
Graduate School Of Integrated Science Yokohama City University
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Hiraoka Kenzo
Clean Energy Res. Center The Univ. Of Yamanashi
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TAKAMIZAWA Atsushi
Clean Energy Research Center, University of Yamanashi
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HIRAOKA Kanzo
Clean Energy Research Center, University of Yamanashi
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Hiraoka Kanzo
Clean Energy Research Center University Of Yamanashi
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Takamizawa Atsushi
Univ. Yamanashi Yamanashi Jpn
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Takamizawa Atsushi
Clean Energy Research Center University Of Yamanashi
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- Application of Laser Spray for Liquid Chromatography/Mass Spectrometry Interface
- Development of Sniffing Atmospheric Pressure Penning Ionization
- Positive Ion/Molecule Reactions in Tetrafluoroethylene
- Development of New Ionization Methods for GC/MS and LC/MS Interfaces
- Application of Probe Electrospray Ionization for Biological Sample Measurements
- Comparative Study of Laser Spray and Electrospray Using an Orthogonal TOF Mass Spectrometer (BMS特集号)
- Development of a Remote-from-Plasma Dielectric Barrier Discharge Ion Source and Its Application to Explosives
- Quantitative Aspects of Atmospheric-Pressure Penning Ionization
- Application of Electrospray Droplet Impact (EDI) to surface science (特集 クラスタービームとその応用技術)
- Mechanism for the Degardation of Ribostamycin by the Laser Spray
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