搜索结果: 1-15 共查到“工学 ionization”相关记录16条 . 查询时间(0.146 秒)
Quantitative Analysis of Humectants in Tobacco Products Using Gas Chromatography (GC) with Simultaneous Mass Spectrometry (MSD) and Flame Ionization Detection
tobacco tobacco humectants Simultaneous Mass Spectrometry
2015/1/7
This paper describes the modification of an existing gas chromatographic (GC) method to incorporate simultaneous mass spectrometric (MSD) and flame ionization detection (FID) into the analysis of toba...
We demonstrate photoionization spectroscopy in cold rubidium atoms trapped in a working
magneto-optical trap. Three-photon ionization with two-photon resonance proceeds along various
channels, with ...
Characterization of Heavy Oil by FT-ICR MS Coupled with Various Ionization Techniques
Structural characterization Heavy oil FT-ICR MS Electrospray ionization In-beam EI Liquid secondary ionization
2010/9/8
Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS) has high resolution, so provides a viable method to characterize extremely complex mixtures. The molecular formulas of individua...
Characterization of Nitrogen Compounds in Vacuum Residues by Electrospray Ionization Fourier Transform Ion Cyclotron Resonance Mass Spectrometry
Vacuum residue Structural characterization Nitrogen compound
2009/7/24
The structural characteristics of the components of several vacuum residues from different geological sources (Taching, Sumatra light, Iranian heavy, Arabian mix, and Murban vacuum residues) were inv...
Manganese oxide nanoparticle-assisted laser desorption/ionization mass spectrometry for medical applications
metal oxide transmission electron microscopy ionization
2010/1/19
We prepared and characterized manganese oxide magnetic nanoparticles (d =5.6 nm) and developed nanoparticle-assited laser desorption/ionization (nano-PALDI) mass spectrometry. The nanoparticles had Mn...
Mass Spectrometry of Bio-Molecule by UV/FEL Matrix-Assisted Laser Desorption/Ionization
Matrix-assisted laser desorption/ionization (MALDI) Time-of-flight mass spectrometry (TOFMS) Free electron laser (FEL) Biological macromolecule
2009/6/15
Matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOFMS) is a powerful and robust tool for protein identification. We proposed a novel MALDI method (UV/FEL MALDI) bas...
Optimal Control of Multiphoton Ionization Processes in I2 Molecules with Time-Dependent Polarization Pulses
Optimal control Genetic algorithm Time-dependent polarization pulse
2009/6/15
We have developed a closed-loop pulse shaping system with a spatial light modulator, where even a time-dependent polarization pulse can be generated and controlled. An outline of the developed pulse s...
Matrix-Assisted Laser Desorption/Ionization Time of Flight Mass Spectrometry with an Infrared Free-Electron Laser
Free-electron laser (FEL) Matrix-assisted laser desorption/ionization (MALDI) Time of flight mass spectrometry (TOFMS)
2009/6/9
A use of a free-electron laser (FEL) as the source of selective vibrational excitation was examined for infrared matrix-assisted laser desorption/ionization time of flight mass spectrometry (IR-MALDI-...
Laser Desorption/Ionization Time of Flight Mass Spectrometry Using a Free-Electron Laser
Free-electron laser (FEL) Laser desorption/ionization Time of flight mass spectrometry (TOFMS)
2009/6/9
This commentary article provides short accounts of matrix-assisted laser desorption/ionization (MALDI) and time of flight mass spectrometry (TOFMS), particularly perspective views of MALDI using an in...
Proteomics Research by Matrix-Assisted Laser Desorption/Ionization Mass Spectrometry
Proteomics MALDI MS Edman chemistry
2009/6/9
Matrix-assisted laser desorption/ionization (MALDI) mass spectrometry (MS) represents a well-accepted and reliable method for the characterization of proteins. The method has great advantages in terms...
Study of Protein Structures Using Matrix-Assisted Laser Desorpion/Ionization Mass Spectrometry
MALDI In-source decay Hydrogen-attachment dissociation
2009/6/9
The mechanism of in-source decay (ISD) under matrix-assisted laser desorption/ionization (MALDI) conditions has been described. The ISD characteristic is the formation of c- and (z+2)-ions originated ...
Analysis of Major Caprine Milk Proteins by Reverse-Phase High-Performance Liquid Chromatography and Electrospray Ionization-Mass Spectrometry
caprine milk proteins mass espectrometry electrospray source
2008/4/1
Major proteins from caprine milk were separated by preparative gel permeation and cation-exchange fast protein liquid chromatography and were characterized by flow injection analysis by electrospray i...
Characterization by Ionization Mass Spectrometry of Lactosyl ß-Lactoglobulin Conjugates Formed During Heat Treatment of Milk and Whey and Identification of One Lactose-Binding Site
mass spectrometry ß beta -lactoglobulin lactose binding site
2008/3/27
The extent of the early stage of the Maillard-type reaction that impaired functional properties of whey proteins was evaluated by electrospray ionization mass spectrometry. Under conditions of mild he...
期刊信息
篇名
Effect of the laser transverse spatial distribution on multiphoton ionization processes
语种
英文
撰写或编译
作者
Lin Meirong ,Chen Wenju,Zhang Baozheng,Liu Yaoming and Li Linfeng
第一作者单位
刊物名称
Acta physic...
Knock Detection and Analyses with Ionization Sensor and Block Vibration Sensor in SI Engine
2007/7/28
期刊信息
篇名
Knock Detection and Analyses with Ionization Sensor and Block Vibration Sensor in SI Engine
语种
英文
撰写或编译
撰写
作者
?Wu xiaomin,Wang ying,Li Fing
第一作者单位
xi'an jiaotong university
刊物名称
2002 the Fifth...