Automatic system for high pressure liquid chromatography

Details Automatic system for high pressure liquid chromatography Automatic system for high pressure liquid chromatography

1974-11-11

1976-06-01

Queisser, Richard C.

Measuring and testing

Liquid analysis or analysis of the suspension of solids in a...

Content or effect of a constituent of a liquid mixture

G01N 3108

Patent

active

039600033

ABSTRACT:
An apparatus and process for automatic high pressure liquid chromatography utilizing an automatic liquid sampler, a sample transport device, a high pressure sampling valve, a liquid chromatograph having a detector, a recorder and an integrator. Timing devices associated with the foregoing components automatically control and synchronize the chromatographic events, such as the volume and duration of the sampling and rinse functions, the mobile phase pump refill, and sample injection and the overall chromatographic cycle time. This apparatus has a last sample stop capability, and one embodiment can produce forty 20 minute chromatograms in approximately thirteen hours of unattended operation.

REFERENCES:
patent: 3469438 (1969-09-01), Gaumer
patent: 3530721 (1970-09-01), Hrdina
patent: 3546946 (1970-12-01), Smith
patent: 3604269 (1971-09-01), Smith et al.
patent: 3754443 (1973-08-01), Harris, Sr. et al.
patent: 3842679 (1974-10-01), Iwao et al.

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