Comparative Study of Laser Spray and Electrospray Using an Orthogonal Time-of-Flight Mass Spectrometer
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概要
- 論文の詳細を見る
A preliminary study on the laser spray and electrospray was made using an orthogonal time-of-flight mass spectrometer. Explosive vaporization and mist formation occurred when an aqueous solution effusing out from the tip of the stainless steel capillary was irradiated from the opposite side of the capillary by a 10.6 μm infrared laser. Little ion signals could be detected when the plume was sampled through the ion sampling orifice. When a high voltage (∼3 kV) was applied to the stainless steel capillary, strong ion signals appeared. The ion intensities were found to be more than one order of magnitude stronger than those obtained by the conventional electrospray for aqueous solutions of arginine and lysozyme. The present method is regarded as the electric-field assisted MALDI in which the LC solvents (water etc.) act as liquid matrices. The laser spray will be a versatile method for the biological mass spectrometry because this method is compatible with the natural solvent, water.
- 日本質量分析学会の論文
- 2004-04-01
著者
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Hiraoka Kenzo
Clean Energy Res. Center The Univ. Of Yamanashi
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Hiraoka Kenzo
Clean Energy Research Center University Of Yamanashi
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OKAZAKI Shigemitsu
Clean Energy Research Center, Yamanashi University
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TAKAMIZAWA Atsushi
Clean Energy Research Center, University of Yamanashi
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Fujimaki S
Clean Energy Research Center University Of Yamanashi
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Fujimaki Susumu
Clean Energy Research Center University Of Yamanashi
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Okazaki Shigemitsu
Clean Energy Research Center University Of Yamanashi
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Takamizawa Atsushi
Clean Energy Research Center University Of Yamanashi
関連論文
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- Development of a Remote-from-Plasma Dielectric Barrier Discharge Ion Source and Its Application to Explosives
- Mass Spectrometric Detection of Gaseous Hydrogen Peroxide in Ambient Air Using Dielectric Barrier Discharge as an Excitation Source
- 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
- Comparative Study of Laser Spray and Electrospray Using an Orthogonal Time-of-Flight Mass Spectrometer
- Synthesis of Amorphous Germane by Tunneling Reactions of Hydrogen Atoms with van der Waals GeH4 Films at Cryogenic Temperatures
- Trace Level Detection of Explosives in Solution Using Leidenfrost Phenomenon Assisted Thermal Desorption Ambient Mass Spectrometry