Results 51 to 60 of about 4,133,758 (201)

Characterisation of pharmaceutical and polymer formulations by novel mass spectrometry approaches [PDF]

open access: yes
Since its inception at the beginning of the twentieth century, the field of mass spectrometry has progressed from the realm of physics to an analytical tool that can be found in many fields of science.
Snelling, Jonathon R.
core  

Characterization of lead-phytochelatin complexes by nano-electrospray ionization mass spectrometry

open access: yesFrontiers in Microbiology, 2012
The role of phytochelatins (PCn, metal-binding oligopeptides with the general structure (γGlu - Cys)n - Gly (n = 2- 11)) in metal detoxification is assumed to be based on immobilization of metals, which prevents binding of metals to important ...
Christian eScheidegger   +6 more
doaj   +1 more source

The path of biomolecular mass spectrometry into open research

open access: yesNature Communications, 2019
Originally designed for measuring isotope abundances and elemental masses, mass spectrometry is becoming a mainstay across life sciences. As electrospray ionization of biomolecules turns 30 and the Orbitrap mass analyzer 20, we take this opportunity to ...
doaj   +1 more source

Seminolipid and its precursor/degradative product, galactosylalkylacylglycerol, in the testis of saposin A- and prosaposin-deficient mice

open access: yesJournal of Lipid Research, 2003
Sphingolipid activator proteins (saposins A, B, C, and D) are derived from a common precursor protein (prosaposin) and specifically activate in vivo degradation of glycolipids with short carbohydrate chains.
Keiko Tadano-Aritomi   +4 more
doaj   +1 more source

An Organic Chemist’s Guide to Electrospray Mass Spectrometric Structure Elucidation

open access: yesMolecules, 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

Performance comparison of electrospray ionization and atmospheric pressure chemical ionization in untargeted and targeted liquid chromatography/mass spectrometry based metabolomics analysis of grapeberry metabolites [PDF]

open access: yes, 2016
Electrospray ionization (ESI) and atmospheric pressure chemical ionization (APCI) are both used to generate ions for the analysis of metabolites by liquid chromatography/mass spectrometry (LC/MS).
Commisso, Mauro   +7 more
core   +1 more source

Direct Ambient Analysis of Pharmaceutical and Ecstasy Tablets

open access: yesCHIMIA, 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

Glycomics expression analysis of sulfated glycosaminoglycans of human colorectal cancer tissues and non-neoplastic mucosa by electrospray ionization mass spectrometry

open access: yesEinstein (São Paulo)
Objective To determine the presence of glycosaminoglycans in the extracellular matrix of connective tissue from neoplastic and non-neoplastic colorectal tissues, since it has a central role in tumor development and progression.
Ana Paula Cleto Marolla   +5 more
doaj   +1 more source

Differentiation between 3,4- and 4,15-Epoxyeudesmanolides by Electrospray Ionization Tandem Mass Spectrometry

open access: yesJournal of Analytical Methods in Chemistry, 2017
We investigated the fragmentation of the eudesmanolide-type sesquiterpene lactones 1α-(4-hydroxymethacryloyloxy)-3α,4α-epoxy-8α-hydroxyeudesm-11(13)-6α,12-olide (1) and 1α-(2,3-epoxyangeloyloxy)-4α,15-epoxy-8α-hydroxyeudesm-11(13)-6α,12-olide (2) by ...
Herbert Júnior Dias   +4 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

open access: yesViruses, 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   +6 more
doaj   +1 more source

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