Total Ion Chromatogram (TIC) - Chemistry Stack Exchange
The total ion current (TIC) chromatogram represents the summed intensity across the entire range of masses being detected at every point in the analysis. Does this mean it is a (mixture) …
Disadvantages of SIM vs TIC in GC-MS - Chemistry Stack Exchange
May 2, 2020 · In GC-MS what are the relative advantages/disadvantages of using Selected-Ion Monitoring (SIM) vs using Total Ion Chromatograms (TIC)? I know that SIM offers a better S/N …
What is the difference between TIC and TICC?
TIC - In the olden days of mass spectrometers there was a way to measure the ion current from the sample (all masses). This total current is the current of all masses that is being injected …
analytical chemistry - What are quantifier and qualifier ions in …
Mar 19, 2021 · Think of structural isomers (low resolution MS is blind to enantiomers, isotopomers, isotopologues etc.). Structural isomers may very closely related mass spectra …
Difference between HCD and CID collision induced dissociations?
Aug 2, 2019 · With the Thermo-Fisher Fusion Orbitrap mass spectrometer I can do both CID (collision-induced dissociation) and HCD (higher energy C trap dissociation) collision-induced …
isotope - What is the difference between a time of flight mass ...
Sep 9, 2017 · Both types of mass spectrometers separate different chemical species based on the mass-to-charge ratio. The time-of-flight mass spectrometer (TOF MS) is based on the ions …
What is the difference of spectra of EI-MS and ESI-MS/MS?
Aug 7, 2021 · Assuming the present question relates to the characterization of a commercial sample 2,3,5-tribromothiophene here, with results used to monitor the progress of a chemical …
mass spectrometry - What is 'Retention period' in …
Feb 11, 2015 · I heard people quite often speak about retention time/retention period in Chromatography and Mass Spectrometry. I see somewhere that it is the time duration …
What do the different grades of chemicals mean?
When purchasing chemicals from Sigma, Fisher, or wherever, there are often -grade's attached to their description like reagent-grade, technical-grade, analytical-grade, or more niche-sounding …
What are the maximum number of electrons in each shell?
Feb 20, 2014 · The pattern of maximum possible electrons = $2n^2$ is correct. Also, note that Brian's answer is good and takes a different approach.
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