Mass spectrometer with soft ionizing glow discharge and conditioner
AssigneeLeco Corporation
InventorsAnatoly N. Verenchikov, Anatoly Zamyatin
Life of this patent
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Abstract
An ion source (12, 102) for a mass spectrometer comprising an ionizer (18, 106) receiving an ionizer gas from an ionizer gas supply (16), a conditioner (20) in communication with the ionizer (18, 106), a reactor (22, 110) in communication with the conditioner (20) and adapted for communication with the mass spectrometer, the reactor (22, 110) adapted to receive a sample from a sample supply in communication with the reactor (22, 110), wherein the conditioner (20) is sized to remove fast diffusing electrons from a flow of the ionizer gas from the glow discharge ionizer (18, 106) to the reactor (22, 110).
Claims17
An ion source (12, 102) for a mass spectrometer comprising:
- A glow discharge ionizer (18, 106) formatted to receive an ionizer gas from an ionizer gas supply (16);
- a conditioner (20) in communication with the at least one ionizer (18, 106);
- and
- a reactor (22, 110) in communication with the conditioner (20) and formatted for communication with the mass spectrometer, the reactor (22, 110) formatted to receive a sample from a sample supply (24), wherein the conditioner (20) is sized to remove fast diffusing electrons from a flow of the ionizer gas between the glow discharge ionizer (18, 106) and the reactor (22, 110), wherein the conditioner (20) is sized to provide a transfer time of the gas flow from ionizer (18, 106) to the reactor (22, 110) of substantially at or between about 5 ms and about 10 ms, and wherein the conditioner (20) comprises a tube having a length of substantially at or about 15 mm and an inner diameter of substantially at or about 2 mm.
Dependencies are inferred from the claim text.