You can select the type of trace that the Chromatogram view displays. The available trace types depend on the detector type (which you select on the Detector Type page) as follows:
- Trace types for MS: TIC, Mass Range, Base Peak, or Neutral Fragment.
NOTE
Entering a chemical formula or peptide sequence in the Formula box automatically changes the trace type to Mass Range and populates the Range column with a calculated m/z value.
- Trace types for analog detector: A/D card.
- Trace types for PDA detector: the trace type needed to determine the signal intensity for each measured wavelength.
- Trace types for UV detector: the trace type (channels) needed to determine for each measured wavelength for different compounds.
Trace type | Description |
|---|---|
MS detector | |
Total ion current (TIC) | A trace of the signal of all ions combined as a function of the RT or scan number. |
Mass Range | A trace of the ion signal of all ions in one or more mass ranges as a function of the RT or scan number. |
Base Peak (BPC) | A trace of the most intense ion signal as a function of the RT or scan number. |
Neutral Fragment | A trace of the ion signal of all ions that produce a specific neutral fragment as a function of the RT or scan number. |
PDA detector | |
Total Scan | Plots the total signal. |
Wavelength Range | Plots the total signal for the wavelength range that you specify in the Ranges box. |
Spectrum Maximum | Plots the maximum signal. |