| 摘要 |
<p>An element (9) in the path of ions (18) in a mass spectrometer is adaptively mounted so that variations in the path ions take can be compensated for in order to improve the resolution of the mass spectrometer. Preferably the element is mounted on at least one variable shape mounting element (37) which can vary its length in response to signals from remote control means (21).</p> |
