Patent ID: 7427750

Claim:
An ion trap mass spectrometer comprising: a vacuum chamber housing comprising a lid and a base, the lid and the base defining a vacuum chamber volume, and the base comprising at least one wall configured to couple with the lid, wherein the lid comprises: an interior surface configured to define an interior wall of the vacuum chamber and an exterior surface configured to couple with an analysis component; and a first opening extending through the lid from the analysis component to the interior surface; an ion trap mass separation component coupled to the interior surface of the lid without being coupled to the base and configured to perform at least some operations with respect to mass separation for use in mass spectrometry, wherein the first opening provides fluid communication between the ion trap and the analysis component; wherein the lid is configured to be removably operably coupled with respect to the base and positioned in a first operable position to seal with the base and provide the ion trap component wholly within the vacuum chamber volume, and a second position to decouple the lid and all analysis components coupled to the lid from the base and provide the ion trap component wholly outside the vacuum chamber volume.