Control valve for a direct on-column injector and injection meth

Details Control valve for a direct on-column injector and injection meth Control valve for a direct on-column injector and injection meth

1980-12-30

1983-09-13

Yasich, Daniel M.

Measuring and testing

Sampler, sample handling, etc.

Analyzer supplier

73 231, 7386473, G01N 3104

Patent

active

044035209

ABSTRACT:
An apparatus for controlling the injection passage of on-column injector is disclosed. The apparatus includes a valve having at least one channel inside it and leading to the injection passage for the injection syringe needle. The channel is connected outside the injector to a source for carrier gas introduction, when the valve is open, or to the atmosphere, when the valve is closed, so as to allow a quick-type injection without the drawbacks of this injection type, as well as to have a solvent exhaust after injection.

REFERENCES:
patent: 3220246 (1965-11-01), Barnum
patent: 3253455 (1966-05-01), Ferrin
patent: 3327520 (1967-06-01), Stapp, Jr.
patent: 3458699 (1969-07-01), Padita
patent: 3675466 (1972-07-01), Linenberg
patent: 3733909 (1973-05-01), Golowistikow
patent: 3961534 (1976-06-01), Gundelfinger
patent: 3985016 (1976-10-01), Haruki
patent: 3985066 (1976-10-01), Haruki
patent: 4068528 (1978-01-01), Gundelfinger
patent: 4128008 (1978-12-01), Linenberg
patent: 4165644 (1979-08-01), Brandt et al.
patent: 4182184 (1980-01-01), Bakalyar et al.

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