Sampler for a gas chromatograph

Details Sampler for a gas chromatograph Sampler for a gas chromatograph

1982-07-12

1984-08-14

Swisher, S. Clement

Measuring and testing

Sampler, sample handling, etc.

Capture device

7386423, 7386481, G01N 114

Patent

active

044649401

ABSTRACT:
According to the head space method, samples are supplied from sealed sample vessels by means of a needle. A change-over valve, an optionally higher or reduced carrier gas pressure is applied to a carrier gas conduit comprising a shut-off valve and terminating between the needle and entrance of the separating column. This enables a defined sample feeding and analysis by an optimum carrier gas pressure even with volatile samples.

REFERENCES:
patent: 3668834 (1972-06-01), Deans
patent: 4237733 (1980-12-01), Kolb et al.

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