Simulation of Radio Frequency Quadrupole Mass

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Simulation of Radio Frequency Quadrupole Mass Analyzer Stephen Jones EPS 109 Final Project 112712 Radio Frequency Mass Analyzer Used in Mass Spectrometry to separate ions with specific masscharge (mz) ratio Design: Four electrodes with

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01
Simulation of Radio Frequency Quadrupole Mass Analyzer Stephen Jones
EPS 109 Final Project
11/27/12<br>
02
Radio Frequency Mass Analyzer Used in Mass Spectrometry to separate ions with specific mass/charge (m/z) ratio
Design:
Four electrodes with positive and negative DC voltage on diagonally opposite rods
RF AC voltage applied 180° out of phase between pairs of diagonal rods

Acceleration=
(charge)x(E field) /(mass) Skoog, D.; Holler, F.; Crouch, S. Principles of Instrumental Analysis 6th Ed.; Brooks/Cole; Belmont, CA 2007.<br>
03
Radio Frequency Mass Analyzer - continued Both DC and AC potentials are increased during run to obtain m/z spectrum


Full scan on the order of milliseconds Skoog, D.; Holler, F.; Crouch, S. Principles of Instrumental Analysis 6th Ed.; Brooks/Cole; Belmont, CA 2007.<br>