base peak


Also found in: Medical.

base peak

[′bās ‚pēk]
(spectroscopy)
The tallest peak in a mass spectrum; it is assigned a relative intensity value of 100, and lesser peaks are reported as a percentage of it.
References in periodicals archive ?
The base peak at m/z 545 corresponding to the loss of 30 u (methoxy group) from fragment ion at m/z 575 was indicative of the presence of a methyl group on the flavone moiety (chrysoeriol) in compound 5.
The mass spectral data recorded an odd number base peak at 163 M/Z for a compound whose molecular weight was observed at 194 M/Z.
45 minutes and has an intensity that is less than 15% relative to the base peak in the same spectrum.
In the base peak oil scenario, it takes 10 years--from 2014 to 2024--for a drop of that magnitude (0.
The largest peaks in each cluster represents to mass number 183 whose base peak is considered to be 100%.