Sample/standard injection head for fluid-phase chromatograph

Details Sample/standard injection head for fluid-phase chromatograph Sample/standard injection head for fluid-phase chromatograph

1980-09-29

1981-09-08

Adee, John

Liquid purification or separation

With means to add treating material

Chromatography

210291, B01D 1508

Patent

active

042883229

ABSTRACT:
An improved device/apparatus for sweeping and injecting a sample and at least one standard into the separation column of a fluid-phase chromatograph, including (i) means for securing same to the inlet of such separation column, (ii) a supply inlet for a stream of carrier medium and means for directing said stream to said separation column, (iii) dividing means in said device for dividing said stream into primary and secondary streams, (iv) distributing means for directing said primary stream to said separation column and distributing said primary stream over the inlet area of said column, (v) means for directing said secondary stream axially into said separation column inlet, and (vi) means for introducing a sample into said secondary stream, the improvement which comprises (vii) means for introducing at least one standard also into said secondary stream.

REFERENCES:
patent: 4035168 (1977-07-01), Jennings
patent: 4124358 (1978-11-01), Muller
patent: 4168235 (1979-09-01), Guilleman et al.

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