Results 271 to 280 of about 203,215 (351)

Desorption electrospray ionization mass spectrometry imaging in discovery and development of novel therapies.

Mass spectrometry reviews (Print), 2021
Desorption electrospray ionization mass spectrometry imaging (DESI-MSI) is one of the least specimen destructive ambient ionization mass spectrometry tissue imaging methods.
Terese Soudah, Amani Zoabi, K. Margulis
semanticscholar   +1 more source

Electrospray ionization mass spectrometry of ginsenosides

Journal of Mass Spectrometry, 2002
AbstractGinsenosides Rb1, Rb2, Rc, Rd, Re, Rf, Rg1, Rg2 and F11 were studied systematically by electrospray ionization mass spectrometry in positive‐ and negative‐ion modes with a mobile‐phase additive, ammonium acetate. In general, ion sensitivities for the ginsenosides were greater in the negative‐ion mode, but more structural information on the ...
Chris D. Metcalfe, Raymond E. March, Xiu-Sheng Miao, Chunyan Hao   +3 more
openaire   +3 more sources

Electrospray Ionization Mass Spectrometry: A Powerful Platform for Noble-Metal Nanocluster Analysis.

Angewandte Chemie, 2019
Electrospray ionization mass spectrometry (ESI-MS) is an analytical technique that measures the mass of a sample through "soft" ionization. Recent years have witnessed a rapid growth of its application in noble-metal nanocluster (NC) analysis.
Tiankai Chen, Qiaofeng Yao, R. Nasaruddin, Jianping Xie   +3 more
semanticscholar   +1 more source

On-Demand Electrochemical Epoxidation in Nano-Electrospray Ionization Mass Spectrometry to Locate Carbon-Carbon Double Bonds.

Angewandte Chemie, 2019
We develop the first on-demand electrochemical epoxidation incorporated into the standard nano-electrospray ionization mass spectrometry (nanoESI MS) workflow for double bond identification.
Shuli Tang, Heyong Cheng, Xin Yan
semanticscholar   +1 more source

Electrospray Ionization Ion Mobility Mass Spectrometry

Critical Reviews in Analytical Chemistry, 2021
Electrospray ionization ion mobility mass spectrometry (ESI-IMS-MS) is a rapidly progressing analytical technique for the examination of complex compounds in the gas phase. ESI-IMS-MS separates isomers, provides structural information, and quantitatively identifies peptides, lipids, carbohydrates, polymers, and metabolites in biological samples.
Katie M. Kohoutek, Peter de B. Harrington   +1 more
openaire   +2 more sources

Electrospray Ionization Mass Spectrometry of Oligonucleotides

Current Protocols in Nucleic Acid Chemistry, 2008
AbstractBecause of the high molecular weights and thermal lability of biomolecules such as nucleic acids and protein, they can be difficult to analyze by mass spectrometry. Such analyses require a “soft” ionization method that is capable of generating intact molecular ions.
Colette M. Castleberry, Patrick A. Limbach, Lenore P. Rodicio   +2 more
openaire   +3 more sources

Electrospray ionization mass spectrometry of metalloporphyrins

Journal of Mass Spectrometry, 1998
The magnesium, nickel, copper, zinc and vanadium metalloporphyrins from octaethylporphyrin, etioporphyrin I and tetraphenylporphyrin were characterized using electrospray ionization mass spectrometry (ESI-MS). The ion abundance of each of the porphyrins present in binary mixtures was monitored as a function of the porphyrin concentration and is ...
Patrick A. Limbach, Victor E. Vandell
openaire   +3 more sources

[21] Electrospray ionization mass spectrometry

1996
Publisher Summary An electrospray ionization source operating at atmospheric pressure was first interfaced to a mass spectrometer in Fenn's laboratory at Yale University (New Haven, CT), with inspiration taken from earlier ion-stopping potential studies, using electrospray ionization conducted by Mack et al .
Banks Jf, Whitehouse Cm
openaire   +3 more sources

Studying noncovalent protein complexes by electrospray ionization mass spectrometry.

Mass spectrometry reviews (Print), 1997
Electrospray ionization mass spectrometry has been used to study protein interactions driven by noncovalent forces. The gentleness of the electrospray ionization process allows intact protein complexes to be directly detected by mass spectrometry ...
J. Loo
semanticscholar   +1 more source

[22] Electrospray ionization mass spectrometry

1990
Publisher Summary This chapter discusses electrospray ionization mass spectrometry. Electrospray ionization (ESI) occurs during the electrostatic nebulization of a solution of charged analyte ions by a large electrostatic field gradient (approximately 3 kV/cm). Highly charged droplets are formed in a dry bath gas, at near atmospheric pressure.
Charles G. Edmonds, Richard D. Smith
openaire   +3 more sources