Evaluation of alternative gas chromatographic and mass spectrometric behaviour of trimethylsilyl-derivatives of non-hydrolysed sulfated anabolic steroids.
Sign Up to like & getrecommendations! Published in 2023 at "Drug testing and analysis"
DOI: 10.1002/dta.3462
Abstract: Sulfated metabolites have shown to have potential as long-term markers (LTMs) of anabolic-androgenic steroid (AAS) abuse. The compatibility of gas chromatography-mass spectrometry (GC-MS) with trimethylsilyl (TMS)-derivatives of non-hydrolysed sulfated steroids has been demonstrated, where, after… read more here.
Keywords: hydrolysed sulfated; gas; mass spectrometric; behaviour ... See more keywords
Microgradient separation technique for purification and fractionation of permethylated N-glycans before mass spectrometric analyses.
Sign Up to like & getrecommendations! Published in 2018 at "Journal of separation science"
DOI: 10.1002/jssc.201701339
Abstract: Analysis of N-glycans released enzymatically from patients' sera or other clinical samples may provide diagnostically and prognostically important information on human disease. Permethylation of these biomolecules simultaneously increases their hydrophobicity and substantially improves their detection… read more here.
Keywords: technique; mass spectrometric; spectrometric analyses; mass ... See more keywords
The utility of molecularly imprinted polymers for mass spectrometric protein and proteomics analysis
Sign Up to like & getrecommendations! Published in 2022 at "PROTEOMICS"
DOI: 10.1002/pmic.202100395
Abstract: Selective and efficient sample clean‐up is important in mass spectrometric protein‐ and proteomics analyses from biological matrices. Molecularly imprinted polymers (MIPs), polymers prepared to have tailor‐made cavities for capture of target analytes may by such… read more here.
Keywords: mass spectrometric; imprinted polymers; protein proteomics; molecularly imprinted ... See more keywords
Mass Spectrometric Analysis of Non-canonical Cyclic Nucleotides.
Sign Up to like & getrecommendations! Published in 2017 at "Handbook of experimental pharmacology"
DOI: 10.1007/164_2016_5001
Abstract: Contemporary investigations regarding the (patho)physiological roles of the non-canonical cyclic nucleoside monophosphates (cNMP) cytidine 3',5'-cyclic monophosphate (cCMP) and uridine 3',5'-cyclic monophosphate (cUMP) have been hampered by the lack of highly specific and sensitive analytic methods… read more here.
Keywords: mass spectrometric; canonical cyclic; non canonical; cyclic nucleotides ... See more keywords
Mass Spectrometric Analysis of Bioactive Sphingolipids in Fungi.
Sign Up to like & getrecommendations! Published in 2021 at "Methods in molecular biology"
DOI: 10.1007/978-1-0716-1410-5_16
Abstract: As biomolecules, sphingolipids represent a broad spectrum of structures ranging from simple long chain bases to complex glycosphingolipids. While several different mass spectrometry based approaches have been proven to be useful in qualitative and quantitative… read more here.
Keywords: sphingolipids fungi; mass spectrometric; analysis; mass ... See more keywords
A Caenorhabditis elegans Mass Spectrometric Resource for Neuropeptidomics
Sign Up to like & getrecommendations! Published in 2018 at "Journal of The American Society for Mass Spectrometry"
DOI: 10.1007/s13361-017-1856-z
Abstract: AbstractNeuropeptides are important signaling molecules used by nervous systems to mediate and fine-tune neuronal communication. They can function as neurotransmitters or neuromodulators in neural circuits, or they can be released as neurohormones to target distant… read more here.
Keywords: spectrometric resource; mass spectrometric; resource; precursor proteins ... See more keywords
Ocular Adnexal Amyloidosis: A Mass Spectrometric Analysis.
Sign Up to like & getrecommendations! Published in 2018 at "American journal of ophthalmology"
DOI: 10.1016/j.ajo.2018.05.032
Abstract: PURPOSE Ocular adnexal amyloidosis (OAA) may represent localized manifestation of an underlying systemic process. Accurate identification of the amyloid fibrils can guide the systemic evaluation and treatment. The aim of this study was to characterize… read more here.
Keywords: mass spectrometric; mass; amyloidosis; spectrometric analysis ... See more keywords
Direct infusion mass spectrometric identification of molecular species of glycerophospholipid in three species of edible whelk from Yellow Sea.
Sign Up to like & getrecommendations! Published in 2018 at "Food chemistry"
DOI: 10.1016/j.foodchem.2017.10.077
Abstract: Whelk has been exploited commercially as a delicacy for a long time. Although previous studies have suggested that whelk might serve as a potential rich source of long chain omega-3 polyunsaturated fatty acids (n-3 LC-PUFA)… read more here.
Keywords: three species; species edible; molecular species; mass spectrometric ... See more keywords
Acid-selective mass spectrometric analysis of petroleum fractions
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Mass Spectrometry"
DOI: 10.1016/j.ijms.2018.10.029
Abstract: Abstract Naphthenic acids are cycloaliphatic carboxylic acids that are naturally-occurring constituents of petroleum. Analytical mass spectrometric methods aimed at carboxylic acids tend to involve deprotonation to generate carboxylate anions, but also produce detectable ions of… read more here.
Keywords: petroleum; acid selective; mass; petroleum fractions ... See more keywords
Experimental and theoretical mass spectrometric quantification of diffusion parameters and 3D structural determination of ions of L-tryptophyl-l-tryptophan in electrospray ionization conditions in positive operation mode
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Molecular Structure"
DOI: 10.1016/j.molstruc.2018.07.055
Abstract: Abstract The issue of this work focuses on development of quantitative model equations connecting experimental mass spectrometric (MS) parameters, for instance, MS intensity, of analyte peaks with thermodynamic, kinetic and diffusion parameters of the corresponding… read more here.
Keywords: diffusion; diffusion parameters; mass spectrometric; trp ... See more keywords
Using of aerodynamic droplet breakup for mass-spectrometric analysis.
Sign Up to like & getrecommendations! Published in 2018 at "Talanta"
DOI: 10.1016/j.talanta.2018.03.050
Abstract: The method of ionization by aerodynamic droplet breakup is considered for applications in mass spectrometric analysis. It is assumed that Aerodynamic Breakup Droplet Ionization (ABDI) occurs in a tube linking the region of atmospheric pressure… read more here.
Keywords: droplet breakup; droplet; mass spectrometric; analysis ... See more keywords