Mass spectrometer

Details Mass spectrometer Mass spectrometer

1980-05-23

1982-02-09

Anderson, Bruce C.

Radiant energy

Ionic separation or analysis

Methods

250288, 250291, B01D 5944

Patent

active

043151493

ABSTRACT:
To increase the sample sensitivity of an ion cyclotron resonance mass spectrometer so that it can analyze small samples, the escape of molecules from an analyzer cell assembly is controlled by a loss reduction means. In the preferred embodiment, the loss reduction means encloses the analyzer cell. Molecular flow conductance tuning of the loss reduction means is used to maximize sensitivity of the detector for small sample sizes, and to balance loss of sample against the buildup of pyrolysis and beam fragmentation products within the loss reduction enclosure.

REFERENCES:
patent: Re26392 (1968-05-01), Craig et al.
patent: 2724056 (1955-11-01), Slepian
patent: 3500040 (1970-03-01), Padrta
patent: 3742212 (1973-06-01), McIver
patent: 4046012 (1977-09-01), Studenick

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