Paul ion trap: Difference between revisions
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Ion trapping device that permits the ejection of ions with an ''[[m/z]]'' lower than a prescribed value and retention of those with higher mass. It depends on the application of radio frequency voltages between a ring electrode and two end-cap electrodes to confine the ion motion to a cyclic path described by an appropriate form of the Mathieu equation. The choice of these voltages determines the ''[[m/z]]'' below which ions are ejected. | |||
The term [[cylindrical ion trap]] is deprecated. | |||
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