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This is an accepted version of this page This is the latest accepted revision, reviewed on 5 February 2025. Roman Catholic society of apostolic life Not to be confused with Priestly Fraternity of Saint Peter. Society of Saint Pius X Priestly Fraternity of Saint Pius X Fraternité Sacerdotale Saint-Pie-X Fraternitas Sacerdotalis Sancti Pii X Abbreviation SSPX FSSPX (official) Named after Pope ...
Ion mobility spectrometry-mass spectrometry (IMS/MS or IMMS) is a technique where ions are first separated by drift time through some neutral gas under an applied electrical potential gradient before being introduced into a mass spectrometer. [43] Drift time is a measure of the collisional cross section relative to the charge of the ion.
The canonical situation of the Society of Saint Pius X (SSPX), a group founded in 1970 by Archbishop Marcel Lefebvre, is unresolved.The Society of Saint Pius X has been the subject of much controversy since 1988, when Bernard Fellay, Bernard Tissier de Mallerais, Richard Williamson and Alfonso de Galarreta were illicitly consecrated as bishops at Ecône, at the International Seminary of Saint ...
[1] [2] Mass spectra is a plot of relative abundance against mass-to-charge ratio. It is commonly used for the identification of organic compounds from electron ionization mass spectrometry. [3] [4] Organic chemists obtain mass spectra of chemical compounds as part of structure elucidation and the analysis is part of many organic chemistry ...
A mass chromatogram is a representation of mass spectrometry data as a chromatogram, where the x-axis represents time and the y-axis represents signal intensity. [1] The source data contains mass information; however, it is not graphically represented in a mass chromatogram in favor of visualizing signal intensity versus time.
Selected reaction monitoring (SRM), also called multiple reaction monitoring (MRM), is a method used in tandem mass spectrometry in which an ion of a particular mass is selected in the first stage of a tandem mass spectrometer and an ion product of a fragmentation reaction of the precursor ions is selected in the second mass spectrometer stage ...
Mass spectrometry imaging (MSI) is a technique used in mass spectrometry to visualize the spatial distribution of molecules, as biomarkers, metabolites, peptides or proteins by their molecular masses. After collecting a mass spectrum at one spot, the sample is moved to reach another region, and so on, until the entire sample is scanned.
Ion mobility spectrometry–mass spectrometry (IMS-MS) is an analytical chemistry method that separates gas phase ions based on their interaction with a collision gas and their masses. In the first step, the ions are separated according to their mobility through a buffer gas on a millisecond timescale using an ion mobility spectrometer .
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