Web1 mrt. 2012 · At a low DP of 20 V, the ammonium adduct of m/z 273 was present as the base ion, accompanied by protonated and sodiated adducts. When DP increased, the response for the ammonium adduct decreased and eventually disappeared at DP 120 V, while the response for the protonated adduct increased accordingly. Web9 jul. 2024 · LC-MS/MS based detection and characterization of covalent glutathione modifications formed by reactive drug of abuse metabolites Conjugation with the tripeptide glutathione (GSH) is a common mechanism of detoxification of many endogenous and exogenous compounds.
Determination of cortisol in hair using liquid ... - Bioanalysis
Webbased annotation (independent of the annotations iso and adduct ). Peaks with the same label are supposed to belong to the same spectrum. The column adduct shows the annotation hypotheses for the ions species. The aluev after the brackets is the estimated molecular mass. 5 Webthe adduct ions. The following, limited study, discusses the data from the acetate adduct ions with steroid molecules (see Fig. 1 for a general structure and the numbering of the C atoms) in the negative ion mode. Abundant adduct ions for these type of molecules have been reported both with the thermospray [7] as with the HN [8,9] interface ... furlough stats
Fiehn Lab - MS Adduct Calculator - UC Davis
WebCysteine (N-term) formaldehyde adduct (Cys to Thioproline conversion) 12: Formaldehyde adduct of Trp: 13: Syndesine (from Lysine) 13: CM-Cys vs PAM-Cys: 14: Methylation (N terminus, N epsilon of Lysine, O of Serine, Threonine or C terminus, N of Asparagine) … Web1 apr. 2024 · One of the three main technologies used to perform metabolomic analyses is Liquid-Chromatography Mass Spectrometry (LC-MS). Data analysis for this technology requires a large variety of steps, ranging from extracting information from the raw data to … Web1 apr. 2024 · LC–MS/MS analytical performance characteristics of chloride adduct ions [M + Cl] − of thiamphenicol (TAP) and florfenicol (FFC) as precursor ions for quantification were studied. The calculations were based on a THF/Water solvent system to which … github stale bot