Internal mass spectrometer interface to a gas chromatograph

Details Internal mass spectrometer interface to a gas chromatograph Internal mass spectrometer interface to a gas chromatograph

1986-02-11

1987-02-10

Myracle, Jerry W.

Measuring and testing

Sampler, sample handling, etc.

Analyzer supplier

73 231, 250288, 250289, G01N 3072

Patent

active

046415416

ABSTRACT:
A device for sensitive analysis of unknown organic samples is disclosed. The device is particularly useful as an interface between a gas chromatograph and a mass spectrometer which has a high pumping capacity. The device comprises an interface internal to the mass spectrometer which may either be attached directly to an inlet probe inserted into a mass spectrometer or directly to the source body of a mass spectrometer. In both cases, the sample goes directly into the source cavity and an auxiliary vacuum system is not required for sample enrichment. For mass spectrometers with marginal pumping capacity, or when very low source pressures are required, the vacuum system may be augmented by designs which either partially or completely isolate the source and interface exhaust pumping systems from each other.

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