Results 51 to 60 of about 226,974 (153)

Simultaneous Determination of Fifteen Constituents of Jitai Tablet Using Ultra High-Performance Liquid Chromatography Coupled with Triple Quadrupole Electrospray Tandem Mass Spectrometry

Molecules, 2014
An ultra-high-performance liquid chromatography-electrospray ionization tandem mass spectrometry (UHPLC-ESI-MS/MS) method was developed for simultaneous determination of fifteen constituents in Jitai tablet (JTT), a complex Traditional Chinese Medicine ...
Shuping Wang, Peng Fu, Lei Liu, Lingling Wang, Chengcheng Peng, Weidong Zhang, Runhui Liu   +6 more
doaj   +1 more source

Kinetic Control of Protonation in Electrospray Ionization [PDF]

Journal of the American Society for Mass Spectrometry, 2011
The site of protonation in a molecule can greatly affect the fragments observed in product ion MS/MS spectra. In electrospray positive ionization mass spectra, protonation usually occurs predominantly on the most basic site on the molecule to produce the thermodynamically favored protonated species.
J Richard, Joyce, Don S, Richards
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

About the Electrospray Ionization Source in Mass Spectrometry: Electrochemistry and On-chip Reactions

CHIMIA, 2009
The present work shows that the electrochemical properties of electrospray ionization (ESI) can be used to add functions to the process. As example, we show how the choice of the electrode material can be used to study interactions between metal
Michel Prudent, Manuel Méndez, Christophe Roussel, Bin Su, Niels Lion, Joël S. Rossier, Hubert H. Girault   +6 more
doaj   +1 more source

Correction: Taliaferro, L. et al. Evaluation of the Broad-Range PCR-Electrospray Ionization Mass Spectrometry (PCR/ESI-MS) System and Virus Microarrays for Virus Detection. Viruses 2014, 6, 1876-1896

Viruses, 2014
We have noted some inaccuracies in Table 1 and Table 2 of our article “Evaluation of the Broad-Range PCR-Electrospray Ionization Mass Spectrometry (PCR/ESI-MS) System and Virus Microarrays for Virus Detection” (Viruses 2014, 6, 1876–1896) [1].[...]
Lanyn P. Taliaferro, Teresa A. Galvin, Hailun Ma, Syed Shaheduzzaman, Dhanya K. Williams, Dustin R. Glasner, Arifa S. Khan   +6 more
doaj   +1 more source

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
openaire   +2 more sources

Comprehensive biothreat cluster identification by PCR/electrospray-ionization mass spectrometry. [PDF]

PLoS ONE, 2012
Technology for comprehensive identification of biothreats in environmental and clinical specimens is needed to protect citizens in the case of a biological attack.
Rangarajan Sampath, Niveen Mulholland, Lawrence B Blyn, Christian Massire, Chris A Whitehouse, Nicole Waybright, Courtney Harter, Joseph Bogan, Mary Sue Miranda, David Smith, Carson Baldwin, Mark Wolcott, David Norwood, Rachael Kreft, Mark Frinder, Robert Lovari, Irene Yasuda, Heather Matthews, Donna Toleno, Roberta Housley, David Duncan, Feng Li, Robin Warren, Mark W Eshoo, Thomas A Hall, Steven A Hofstadler, David J Ecker   +26 more
doaj   +1 more source

Enhanced ionization in electrospray ionization mass spectrometry of labile end-group-containing polystyrenes using silver(I) tetrafluoroborate as doping salt

, 2008
The use of silver tetrafluoroborate as a doping salt to achieve efficient and soft desorption/ionization of labile end-group-carrying polystyrene during electrospray ionization is demonstrated.
Davis, Thomas P., Davis, T. P., Gruendling, Till, Gruendling, T., Hart-Smith, G., Hart-Smith, Gene, Stenzel, M. H., Stenzel, Martina H., Barner-Kowollik, Christopher, Barner-Kowollik, C.   +9 more
core   +1 more source

Recent Development on the Detection and Monitoring of Chemical Intermediates by Ambient Mass Spectrometry [PDF]

Zhipu Xuebao
Along with the development of science and technology, chemical reactions exhibit an important role in various fileds including synthesis, chemical engineering, energy, environment, biology and medicine.
GE Xi-yang1, YIN Yi-yan1, OUYANG Jin2, NA Na1   +3 more
doaj  

Moderate Signal Enhancement in Electrospray Ionization Mass Spectrometry by Focusing Electrospray Plume with a Dielectric Layer around the Mass Spectrometer’s Orifice

Molecules
Electrospray ionization (ESI) is among the commonly used atmospheric pressure ionization techniques in mass spectrometry (MS). One of the drawbacks of ESI is the formation of divergent plumes composed of polydisperse microdroplets, which lead to low ...
Zi Qing Chua, Gurpur Rakesh D. Prabhu, Yi-Wun Wang, Chamarthi Maheswar Raju, Krzysztof Buchowiecki, Ochir Ochirov, Decibel P. Elpa, Pawel L. Urban   +7 more
doaj   +1 more source