Development o f the electrospray ionization source and
Improvements in electrospray ionization source design and advances in tandem mass spectrometry
... The multi-sprayer nESI experiments were conducted using a home-built source consisting of two nESI sprayers secured to an X-Y-Z translational stage. The sprayers were each at an angle of 5° with respect to and ~ ...
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An important advantage of electrospray ionization
... the electrospray droplet, but an increase in charging is observed when organic solutions of lower initial surface tension are used ...aqueous electrospray solutions and that significant structural changes ...
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Development of electrospray ionization of biomolecules on a magnetic sector mass spectrometer
... ESI source manufactured by Analytica of Bradford (Bradford, CT), which was supplied to our laboratory for the Kratos Concept Four-sector mass spectrometer during 1996 - 1997, used a simple way to solve the ...
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An electrospray chemical ionization source for real-time measurement of atmospheric organic and inorganic vapors
... ESCI source presented here is in its early stages of de- ...ion source are also required to improve its performance, es- pecially long-term stability, which is particularly important for field ...prototype ...
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Development and Characterization of an Atmospheric Pressure Ionization Source Matrix-Assisted Laser Desorption Electrospray Ionization Coupled to Fourier Transform Ion Cyclotron Resonance Mass Spectrometry for Analysis of Biological Macromolecules
... new ionization sources have been ...two ionization methods for improved ionization using 1) infrared laser desorbed neutral molecules postionized using multi-photon ionization with a UV laser ...
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Desorption Electrospray Ionization (DESI) Mass Spectrometric Imaging of the Distribution of Rohitukine in the Seedling of Dysoxylum binectariferum Hook. F
... desorption electrospray ionization mass spectrometry imaging (DESI ...ambient ionization technique and consequently many of the limi- tations of conventional mass spectral analysis do not apply ...
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Direct analysis of oil additives by high-field asymmetric waveform ion mobility spectrometry-mass spectrometry combined with electrospray ionization and desorption electrospray ionization
... ambient ionization techniques such as DESI allow the direct analysis of analytes on ...ion source ( Figure 2 ...constructed source was signi ficantly lower than that observed for ESI using the ...
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Whisky analysis by electrospray ionization-Fourier transform mass spectrometry
... spectrometry Electrospray ionization (ESI) coupled to ultra-high resolution and accuracy Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS) was employed for the direct analysis of ...
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On the mechanism of extractive electrospray ionization (EESI) in the dual-spray configuration
... distribution of the EESI spray was very similar to the averaged results in single-spray mode. This suggests that there was no permanent coalescence at the origin as well as further downstream in the EESI plume, although ...
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Quantitative lipidomic analysis of mouse lung during postnatal development by electrospray ionization tandem mass spectrometry
... Phosphatidylglycerol lipid concentrations are highly concentrated in the lung compared to other mammalian tissues [ 66 ]. It is well documented that PG lipids are involved in the adsorp- tion and, spreading of ...
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Analysis of Improvised Explosives by Electrospray Ionization - Mass Spectrometry and Microfluidic Techniques
... addition of an oxidizer which permitted the material to burn or deflagrate in the absence of air. In fact this was one of the first descriptions of a mixture that contained a combination of oxidizer and fuel was a ...
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Imaging of Human Lens Lipids by Desorption Electrospray Ionization Mass Spectrometry
... DESI-Imaging of Lens Lipids Figure 3 shows the abundance distributions of a range of ionized lipids and cholesterol within a 41-y-old lens (additional images from 23-, 50-, and 55-y-old lenses are provided as Supporting ...
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Rapid determination of aminoglycosides in pharmaceutical preparations by electrospray ionization mass spectrometry
... Aminoglycosides are broad-spectrum antibiotics often employed to combat Gram-negative bacterial infections. A technique based on electrospray-ionization mass spectrometry (ESI-MS) was developed for rapid ...
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Development and Application of Matrix-Assisted Laser Desorption Electrospray Ionization Mass Spectrometry Imaging for Drug Distribution Studies.
... 8.3.3 Loading Multiple Data Sets A commonly requested feature that is now available in MSiReader is the ability to load and process more than one data set simultaneously. Previously, the only way to accomplish this was ...
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METHOD DEVELOPMENT AND VALIDATION FOR THE ESTIMATION OF AMPRENAVIR IN HUMAN PLASMA BY LIQUID CHROMATOGRAPHY–ELECTROSPRAY IONIZATION–TANDEM MASS SPECTROMETRY
... Objective: The main aim of the present study was to develop a sensitive liquid chromatography–electrospray ionization–tandem mass spectrometric technique for the quantitation of amprenavir in human plasma. ...
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Chiral Recognition and Mechanistic study of Gas phase Anions using Electrospray Ionization Mass Spectrometry & Development of New Matrices for Matrix-Assisted Laser Desorption/Ionization
... and a suitable reference compounds were easily generated under electrospray ionization conditions, and dissociated appropriately in the collision cell. The relative abundances of the two monomeric product ...
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Original Paper Electrospray Ionization Mass Spectrometric Analysis of Aqueous Polysulfide Solutions
... The following experimental parameters were used for the LCQ experiments: the ESI was operated either in positive or in negative ion mode. In the negative ion mode we used 4.0 kV spray voltage and 20 V cone voltage. In ...
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Metabolomic Analysis of Campylobacter jejuni by Direct-Injection Electrospray Ionization Mass Spectrometry
... applications. Electrospray ionisation time of flight mass spectrometry (ESI-TOF-MS) is a technique that has been used for high throughput fingerprinting in both plants and bacteria (1, ...
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An Electrospray Ionization Mass Spectrometric Study on Reactivity of Resveratrol Induced by Metal Ions
... By electrospray ionization (ESI) mass spectrome- try we have produced and detected some resveratrol-copper complexes by using a resveratrol/CuSO 4 solution in acetonitrile/water, and their most stable ...
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