Results 71 to 80 of about 376,084 (233)

A Combined Desorption Ionization by Charge Exchange (DICE) and Desorption Electrospray Ionization (DESI) Source for Mass Spectrometry [PDF]

Journal of the American Society for Mass Spectrometry, 2011
A source that couples the desorption ionization by charge exchange (DICE) and desorption electrospray ionization (DESI) techniques together was demonstrated to broaden the range of compounds that can be analyzed in a single mass spectrometric experiment under ambient conditions. A tee union was used to mix the spray reagents into a partially immiscible
Chang-Ching, Chan, Mark S, Bolgar, Scott A, Miller, Athula B, Attygalle   +3 more
openaire   +2 more sources

Controlling Growth of Ultrasmall Sub‐10 nm Silver Nanoparticles From Cotinus coggygria Scop. Extract and Evaluation of Its In Vitro Anti‐Breast Cancer, Antioxidant and Antimicrobial Activity

Journal of Applied Toxicology, EarlyView.
ABSTRACT This study highlights the potential use of Cotinus coggygria Scop. plant extract in a single‐step synthesis of biocompatible and ultrasmall AgNPs for in vitro applications. Herein, microscopic analyses revealed that AgNP exposure did not induce appreciable morphological changes in CRL‐4010 cells, whereas MCF‐7 and MDA‐MB‐231 cells exhibited ...
Ümran Ünüvar, Tuğba Nur Aslan, Suray Pehlivanoğlu, Kübra Ece Coşkuner   +3 more
wiley   +1 more source

The application of mass spectrometry imaging in traditional Chinese medicine: a review

Chinese Medicine, 2022
Mass spectrometry imaging is a frontier technique which connects classical mass spectrometry with ion imaging. Various types of chemicals could be visualized in their native tissues using mass spectrometry imaging.
Lieyan Huang, Lixing Nie, Zhong Dai, Jing Dong, Xiaofei Jia, Xuexin Yang, Lingwen Yao, Shuang-cheng Ma   +7 more
doaj   +1 more source

Perspectives of High‐Resolution Mass Spectrometry in Soil Science

Journal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Soil biogeochemical research requires specific, sensitive, and accurate methods to identify and quantify organic molecules in order to trace biochemical processes and assess element cycling in complex, heterogenous systems. High‐resolution mass spectrometry (HRMS) has evolved into a transformative tool for unraveling the complex chemical ...
Bruno Glaser, Tobias Bromm, Klaus Kaiser, Arthur Gross, Carsten Simon, Snežana Maletić, Ines Mulder, Oliver J. Lechtenfeld, Sören Thiele‐Bruhn, Ivy Notterpek, Callum Banfield, Michaela A. Dippold   +11 more
wiley   +1 more source

Direct detection and identification of active pharmaceutical ingredients in intact tablets by helium plasma ionization (HePI) mass spectrometry

Journal of Pharmaceutical Analysis, 2014
A simple modification converts an electrospray ion source to an ambient-pressure helium plasma ionization source without the need of additional expensive hardware.
Athula B. Attygalle, Freneil B. Jariwala, Julius Pavlov, Zhihua Yang, Jason A. Mahr, Mabel Oviedo   +5 more
doaj   +1 more source

Small‐Scale Topographic Variability Shapes Molecular Diversity of Organic Matter in Coastal Dune Soils

Journal of Plant Nutrition and Soil Science, EarlyView.
Topography shapes ecosystem controls, driving microclimate, hydrology, and vegetation, which, in turn, influence topsoil traits and DOM composition in coastal dune soils. Distinct molecular patterns emerge across north‐facing and south‐facing slopes and dune valleys.
Lejonina Herting, Hannelore Waska, Kojo Amoako, Stephan L. Seibert, Gudrun Massmann, Philipp Maurischat   +5 more
wiley   +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

Analytical Approaches to Address Challenges in the Analysis of Cannabinoids in Vascular Matrices Using Mass Spectrometry

Mass Spectrometry Reviews, EarlyView.
ABSTRACT Phytocannabinoids are bioactive metabolites derived from the Cannabis sativa plant. They have garnered attention due to their recreational uses and therapeutic potential. Although various analytical strategies have been employed for their analysis, mass spectrometry (MS) coupled to chromatographic separation is superior due to its sensitivity ...
Radwa Mahmoud, Robert B. Laprairie, Anas El‐Aneed   +2 more
wiley   +1 more source

Study of Electrochemical Reactions Using Nanospray Desorption Electrospray Ionization Mass Spectrometry

, 2016
The combination of electrochemistry (EC) and mass spectrometry (MS) is a powerful analytical tool for studying mechanisms of redox reactions, identification of products and intermediates, and online derivatization/recognition of analytes.
Pengyuan Liu (32609), Howard D. Dewald (2068474), Hao Chen (5190), Julia Laskin (1354860), Ingela T. Lanekoff (2068471)   +4 more
core   +1 more source

Estimation of the proton affinity values of fifteen matrix-assisted laser desorption/ionization matrices under electrospray ionization conditions using the kinetic method [PDF]

, 2004
The kinetic method, which is known to be simple, fast and precise, is used for the measurement of proton affinity values of fifteen selected matrix-assisted laser desorption/ionization matrices under electrospray ionization conditions.
Vairamani, M., Parveen Mirza, Shama, Prasada Raju, N.   +2 more
core   +1 more source