Orbitrap

From MS Terms Wiki
Jump to navigation Jump to search
DRAFT DEFINITION
Orbitrap
An ion trap mass spectrometer that consists of an outer barrel-like electrode and a coaxial inner spindle-like electrode that form an electrostatic field with quadro-logarithmic potential distribution. The frequency of harmonic oscillations of the orbitally trapped ions along the axis of the electrostatic field is independent of the ion velocity and is inversely proportional to the square root of m/z so that the trap can be operated as a mass analyzer using image current detection and Fourier transformation of the time domain signal.
Related Term(s):
Reference(s):

PSI-MS:

http://purl.obolibrary.org/obo/MS_1000484
This is an unofficial draft definition presented for information and comment.

Recommended terms | Full list of terms