SYSTEMS FOR SEPARATING IONS AND NEUTRALS AND METHODS OF OPERATING THE SAME

摘要

A mass spectrometer system includes a sample injection device defining a sample injection aperture. The system also includes an ion trap defining an ion outlet aperture. The ion trap is coupled to the sample injection device. The system further includes a detector positioned downstream of the ion outlet aperture. The system also includes an ion source coupled to the ion trap. The ion source is configured to ionize a sample injected into the ion trap and generate a plurality of ionized molecules within the ion trap. The ion trap is configured to maintain the plurality of ionized molecules therein while a plurality of neutral molecules migrate out of the ion trap until a predetermined pressure is attained in the ion trap.