Results 31 to 40 of about 682,349 (297)
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
doaj +1 more source
Direct Ambient Analysis of Pharmaceutical and Ecstasy Tablets
CHIMIA, 2006 Desorption electrospray ionization (DESI) is a new ionization technique recently introduced in analytical chemistry for the ambient analysis of surfaces by mass spectrometry.
Luc Alexis Leuthold +6 more
doaj +1 more source
Natural product reports (Print), 2016 Over the last decade, the number of studies reporting the use of electrospray ionization mass spectrometry (ESI-MS) in combination with collision cells (or other activation methods) to promote fragmentation of synthetic and natural products for ...
D. Demarque +4 more
semanticscholar +1 more source
Mechanistic investigation of ionization suppression in electrospray ionization
Journal of the American Society for Mass Spectrometry, 2000 We show results from experiments designed to determine the relative importance of gas phase processes and solution phase processes into ionization suppression observed in biological sample extracts. The data indicate that gas phase reactions leading to the loss of net charge on the analyte is not likely to be the most important process involved in ...
King, Richard +4 more
openaire +2 more sources
An Organic Chemist’s Guide to Electrospray Mass Spectrometric Structure Elucidation
Molecules, 2019 Tandem mass spectrometry is an important tool for structure elucidation of natural and synthetic organic products. Fragmentation of odd electron ions (OE+) generated by electron ionization (EI) was extensively studied in the last few decades, however ...
Arnold Steckel, Gitta Schlosser
doaj +1 more source
Identification of Monohexosylceramides From by Electrospray Ionization Mass Spectrometry
Natural Product Communications, 2020 To date, the monohexosylceramides present in the eukaryotic alga Euglena gracilis has not been reported. In this study, we extracted and purified a lipid fraction that eluted similarly to other reported monohexosylceramides.
Nairui Zhang +7 more
doaj +1 more source
Proceedings, 2020 Matrix-induced signal suppression or enhancements are known phenomena in electrospray ionization mass spectrometry. Very few studies report on method development for organic aerosols analyses with the evaluation of the matrix effects.
Cornelia Amarandei +2 more
doaj +1 more source
Mass spectrometry reviews (Print), 2016 Lipidomics is rapidly expanding because of the great facilitation of recent advances in, and novel applications of, electrospray ionization mass spectrometry techniques.
Miao Wang, Chunyan Wang, Xianlin Han
semanticscholar +1 more source
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
Identification of the plant mitochondrial OrfX protein: A mass spectrometry approach
FEBS Letters, EarlyView.The mitochondrial genome of plants contains an open reading frame, orfx, which encodes a rare protein that has so far escaped mass spectrometric detection. The protein resembles the c‐subunit of bacterial twin‐arginine‐motif‐dependent protein translocases (TatC).
Matthias Döring +3 more
wiley +1 more source