Results 11 to 20 of about 128,340 (290)

Spatially-resolved in vivo plant metabolomics by laser ablation-based mass spectrometry imaging (MSI) techniques: LDI-MSI and LAESI

Frontiers in Plant Science, 2015
This short review aims to summarize the current developments and applications of mass spectrometry-based methods for in situ profiling and imaging of plants with minimal or no sample pre-treatment or manipulation.
Aleš eSvatoš, Benjamin eBartels
doaj   +1 more source

Estudo por espectrometria de massas de soluções de hidróxi(tosilóxi)iodobenzeno: propostas para mecanismos de desproporção

Química Nova, 2012
Solutions of [hydroxy(tosyloxy)iodo]benzene (HTIB or Koser's reagent) in acetonitrile were analyzed using high resolution electrospray ionization mass spectrometry (ESI-MS) and electrospray ionization tandem mass spectrometry (ESI-MS/MS) under different ...
Ramon S. Vasconcelos, Luiz F. Silva Jr, Norberto P. Lopes   +2 more
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Comparison of Plasma Ionization- and Secondary Electrospray Ionization- High-resolution Mass Spectrometry for Real-time Breath Analysis

CHIMIA, 2022
Real-time breath analysis by high-resolution mass spectrometry (HRMS) is a promising method to noninvasively retrieve relevant biochemical information.
Jiafa Zeng, Alexandra Christen, Kapil Dev Singh, Urs Frey, Pablo Sinues   +4 more
doaj   +1 more source

High-frequency gaseous and particulate chemical characterization using extractive electrospray ionization mass spectrometry (Dual-Phase-EESI-TOF) [PDF]

Atmospheric Measurement Techniques, 2022
To elucidate the sources and chemical reaction pathways of organic vapors and particulate matter in the ambient atmosphere, real-time detection of both the gas and particle phase is needed.
C. P. Lee, M. Surdu, D. M. Bell, J. Dommen, M. Xiao, X. Zhou, A. Baccarini, A. Baccarini, S. Giannoukos, S. Giannoukos, G. Wehrle, P. A. Schneider, A. S. H. Prevot, J. G. Slowik, H. Lamkaddam, D. Wang, U. Baltensperger, I. El Haddad   +17 more
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Detection of Plasmodium vivax in a child returning from India by use of broad-range PCR and electrospray ionization mass spectrometry

Emerging Microbes and Infections, 2012
Plasmodium vivax is a common cause of imported malaria in the USA, second only to P. falciparum. We present a case of P. vivax malaria in a child returning from India. P.
Megan A Rounds, Christopher D Crowder, Charles W Stratton, David J Ecker, Mark W Eshoo, Yi-Wei Tang   +5 more
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Electrospray Ionization-Induced Protein Unfolding [PDF]

Journal of the American Society for Mass Spectrometry, 2012
Electrospray ionization mass spectrometry (ESI-MS) measurements were performed under a variety of solution conditions on a highly acidic sub-fragment (B3C) of the C-terminal carbohydrate-binding repeat region of Clostridium difficile toxin B, and two mutants (B4A and B4B) containing fewer acidic residues.
Hong, Lin, Elena N, Kitova, Margaret A, Johnson, Luiz, Eugenio, Kenneth K S, Ng, John S, Klassen   +5 more
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Recent Applications of Ambient Ionization Mass Spectrometry for Environmental Pollutant Detection [PDF]

Zhipu Xuebao, 2023
Along with the industrial development and human society progress, large number of pollutants have been discharged to induce the environmental pollution, which have attracted global attentions.
QIN Jing-yi, OUYANG Jin, NA Na
doaj   +1 more source

Fabricating an Electrospray Ionization Chip Based on Induced Polarization and Liquid Splitting

Micromachines, 2021
The coupling of the microfluidic chip to mass spectrometry (MS) has attracted considerable attention in the area of chemical and biological analysis.
Lvhan Zhou, Qian Zhang, Xiangchun Xu, Xinming Huo, Qian Zhou, Xiaohao Wang, Quan Yu   +6 more
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Enhanced desorption ionization using oxidizing electrosprays [PDF]

Journal of the American Society for Mass Spectrometry, 2006
A signal enhancement of two orders of magnitude was achieved when reactive desorption electrospray ionization (DESI) was used to investigate copper(II) dibutyl dithiocarbamate, Cu(II)(bu2dtc)2, found in a specialized polymer. Cu(II) was oxidized to Cu(III) during the DESI experiment by oxidants in the spray solvent.
Nefliu, Marcela, Cooks, R. Graham, Moore, Colin   +2 more
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Electrospray ionization of copper—glycine solutions [PDF]

Journal of the American Society for Mass Spectrometry, 1996
We have characterized the electrospray ionization (ESI) spectra of mixtures of the 3d transition metal ion Cu(2+) with both a model amino acid (glycine) and a simple peptide system (glycylglycine). We found what appear to be two major classes of ions.
Xu, Yaodong, Zhang, Xin, Yergey, Alfred L.   +2 more
openaire   +2 more sources