Results 31 to 40 of about 4,133,758 (201)

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
doaj   +1 more source

Electrospray Ionization Mass Spectrometry: A Technique to Access the Information beyond the Molecular Weight of the Analyte

International Journal of Analytical Chemistry, 2012
The Electrospray Ionization (ESI) is a soft ionization technique extensively used for production of gas phase ions (without fragmentation) of thermally labile large supramolecules.
Shibdas Banerjee, Shyamalava Mazumdar
doaj   +1 more source

Ambient ionization mass spectrometry in brain cancer diagnosis

Journal of Mass Spectrometry and Advances in the Clinical Lab
Cancer is the second leading cause of death in the United States, and with ongoing population growth and aging, its annual incidence continues to rise. Glioma is a malignant tumor of the brain and central nervous system (CNS).
Mahdiyeh Shahi, R. Graham Cooks
doaj   +1 more source

Eletroforese capilar acoplada à espectrometria de massas (CE-MS): vinte anos de desenvolvimento Capillary electrophoresis coupled to mass spectrometry (CE-MS): twenty years of development

Química Nova, 2008
CE-MS has been increasingly used for analysis of a vast array of compounds. This article reviews the different electrophoretic modes, interfaces and mass analyzers that are commonly used in the CE-MS coupling, as well as the technique advantages and ...
Nilson Antonio Assunção, Etelvino José Henriques Bechara, Ana Valéria Colnaghi Simionato, Marina Franco Maggi Tavares, Emanuel Carrilho   +4 more
doaj   +1 more source

Nanobubbles in Electrospray Ionization Mass Spectrometry

Analytical Chemistry
Nanobubbles (NBs) are very small gas-filled cavities in solvents, and when their sizes reach diameters around 200 nm, they remain in solution for extended periods of time, featuring special chemical and physical properties. Here, we investigate the application of NBs in electrospray ionization.
George Joseph, Bincy Binny, Andre R Venter   +2 more
openaire   +2 more sources

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

Synchronized dual-polarity electrospray ionization mass spectrometry [PDF]

Journal of the American Society for Mass Spectrometry, 2009
This work describes the synchronized dual-polarity (DP) electrospray ionization (ESI) method and demonstrates the first DP ESI mass spectra obtained using two mass spectrometers. Stable double Taylor cones were produced by applying two counter electric voltages with opposite polarities to one electrosprayer.
Chen, Han-Kwang, Chang, Chia-Kai, Wu, Chih-Che, Huang, Ming-Chia, Wang, Yi-Sheng   +4 more
openaire   +2 more sources

A targeted mass spectrometric analysis of phosphatidylinositol phosphate species

Journal of Lipid Research, 2005
The development of a new mass spectrometric lipid profiling methodology permits the identification of cellular phosphatidylinositol monophosphate/phosphatidylinositol bisphosphate/phosphatidylinositol trisphosphate (PIP/PIP2/PIP3) species that includes ...
Stephen B. Milne, Pavlina T. Ivanova, Dianne DeCamp, Robert C. Hsueh, H. Alex Brown   +4 more
doaj   +1 more source

Assignment of polymorphic species of insulin analogues in ion mobility mass spectroscopy

Data in Brief, 2017
Electrospray ionization – ion mobility spectrometry – mass spectrometry (ESI–IMS–MS) allows the identification of protein polymorphic distribution of protein conformers and oligomers.
Maely P. Fávero-Retto, Luiz Henrique Guerreiro, Cássio M. Pessanha, Leonardo C. Palmieri, Luís Maurício T.R. Lima   +4 more
doaj   +1 more source

Sample Preparation for Probe Electrospray Ionization Mass Spectrometry

Journal of Visualized Experiments, 2020
Mass spectrometry (MS) is a powerful tool in analytical chemistry because it provides very accurate information about molecules, such as mass-to-charge ratios (m/z), which are useful to deduce molecular weights and structures. While it is essentially a destructive analytical method, recent advancements in the ambient ionization technique have enabled ...
Sen, Takeda, Kentaro, Yoshimura, Hiroshi, Tanihata   +2 more
openaire   +2 more sources