The precursor ion intensity threshold was set to above 1000 counts.
The Ar ion intensity increases with total reactor pressure up to 66.6 Pa and then ion intensity was found to decrease with pressure.
In every simulation, the ion intensity at the entrance is set as 100, and the ion intensity at the exit of the drift tube is recorded at different compensation voltage.
The quantitative relationship between the ion intensity and the surface composition was studied.
If a peak was not detected in a sample, the ion intensity was documented as zero in the table.
Specifically, if certain ion intensity was less than peak noise value in one sample, zero would be assigned to that ion intensity in the matrix.
Census calculates peptide ion intensity ratios for each pair of extracted ion chromatograms.
Our profiling quantifies metabolites based on their absolute mass ion intensity.
The ion intensity data were obtained using a source voltage of 2.5 kV and capillary temperature of 225°C.
Data were normalized using total ion intensity.
Prior to analyses, data were normalized to total ion intensity.
