Results 1 to 10 of about 195,406 (308)

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
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Extractive electrospray ionization mass spectrometry for analytical evaluation and synthetic preparation of pharmaceutical chemicals

Frontiers in Pharmacology, 2023
Extraction electrospray ionization mass spectrometry (EESI-MS), due to the unique configuration of its ionization module, enables the effective ionization of trace molecules of interest in samples containing complex matrices with high sensitivity, high ...
Manman Qin, Manman Qin, Manman Qin, Yuqing Qian, Lu Huang, Chao Zhong, Chao Zhong, Mingdong Li, Jun Yu, Huanwen Chen   +9 more
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Enhancing Metabolomic Coverage in Positive Ionization Mode Using Dicationic Reagents by Infrared Matrix-Assisted Laser Desorption Electrospray Ionization

Metabolites, 2021
Mass spectrometry imaging is a powerful tool to analyze a large number of metabolites with their spatial coordinates collected throughout the sample. However, the significant differences in ionization efficiency pose a big challenge to metabolomic mass ...
Ying Xi, David C. Muddiman
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Implementation of a MS/MS database for isoquinoline alkaloids and other annonaceous metabolites

Scientific Data, 2022
Measurement(s) electrospray ionization Technology Type(s) Ultra High-performance Liquid Chromatography • Tandem Mass ...
Salemon Akpa Agnès, Timothée Okpekon, Yvette Affoué Kouadio, Adrien Jagora, Dimitri Bréard, Emmanoel V. Costa, Felipe M. A. da Silva, Hector H. F. Koolen, Anne-Marie Le Ray-Richomme, Pascal Richomme, Pierre Champy, Mehdi A. Beniddir, Pierre Le Pogam   +12 more
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Research Progress of Highly Selective Solid Substrate Electrospray Ionization Sources for Mass Spectrometry [PDF]

Zhipu Xuebao, 2022
Solid substrate electrospray mass spectrometry is an ambient mass spectrometry method that involves carrying, ionization and detection of the samples. This approach has a wide range of applications, and which is appropriate for rapid mass spectrometric ...
ZHANG Feng;MU Guo-dong;LIU Tong
doaj  

Desorption Electrospray Ionization (DESI) Mass Spectrometric Imaging of the Distribution of Rohitukine in the Seedling of Dysoxylum binectariferum Hook. F. [PDF]

PLoS ONE, 2016
Ambient ionization mass spectrometric imaging of all parts of the seedling of Dysoxylum binectariferum Hook. f (Meliaceae) was performed to reconstruct the molecular distribution of rohitukine (Rh) and related compounds.
Patel Mohana Kumara, Amitava Srimany, Suganya Arunan, Gudasalamani Ravikanth, Ramanan Uma Shaanker, Thalappil Pradeep   +5 more
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Advances in MALDI Mass Spectrometry Imaging Single Cell and Tissues

Frontiers in Chemistry, 2022
Compared with conventional optical microscopy techniques, mass spectrometry imaging (MSI) or imaging mass spectrometry (IMS) is a powerful, label-free analytical technique, which can sensitively and simultaneously detect, quantify, and map hundreds of ...
Xiaoping Zhu, Xiaoping Zhu, Tianyi Xu, Tianyi Xu, Chen Peng, Shihua Wu, Shihua Wu   +6 more
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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
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Structure elucidation of sildenafil analogues in herbal products. [PDF]

, 2004
The structure of unknown compounds present in herbal products was elucidated using liquid chromatography-electrospray ionization-mass spectrometry, direct-infusion electrospray ionization-mass spectrometry, and nuclear magnetic resonance.
Bakker, F, Blok-Tip, L, Hamzink, M, Hartog, K D, Hove, J ten, Kaste, D de, Vredenbregt, M, Zomer, B   +7 more
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Neutral particle Mass Spectrometry with Nanomechanical Systems [PDF]

, 2015
Current approaches to Mass Spectrometry (MS) require ionization of the analytes of interest. For high-mass species, the resulting charge state distribution can be complex and difficult to interpret correctly.
Alava, Thomas, Brenac, Ariel, Dupré, Cécilia, Duraffourg, Laurent, Hanay, Mehmet Selim, Hentz, Sébastien, Masselon, Christophe, Morel, Robert, Roukes, Michael L., Sage, Eric   +9 more
core   +6 more sources