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 ?
As: 1 Collector Emitter Voltage-700V 2 Collector Emitter Voltage-400V 3 Emitter Base Voltage- 9V 4 Collector Current- 4A 5 Collector Peak Current - 8A 6 Base Current-2A 7 Base Peak Current- 4A 8 Total Dissipaton @Tc Equal To 25 Degree C 75W 9 Storage Temp: Minus 65 To 15 Degree C 10 Max.
fragment ion) is selected as the base peak for ethanol calibration.
MRIC of each cellulosic materials characterized by area at different retention time and each area has a fixed base peak (100%) in mass spectra that is characterized to monomer cellulose and cellulose xanthate.
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 observation of the base peak of nerolidol resulting from the loss of water is consistent with other reports.
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.
Most spectra are accompanied by the structure and trivial name, molecular formula, molecular weight, nominal mass, and base peak.
The spectrum is noisy because optimal ionization parameters were not explored and Copper Phthalocyanine is insoluble, which resulted in an order of magnitude ion count decrease of the base peak when compared to the positive-ion mode.
The largest peaks in each cluster represents to mass number 183 whose base peak is considered to be 100%.