Apparatus and method for introducing solutes into a stream of ca

Details Apparatus and method for introducing solutes into a stream of ca Apparatus and method for introducing solutes into a stream of ca

1985-02-04

1986-10-07

Levy, Stewart J.

Measuring and testing

Sampler, sample handling, etc.

Analyzer supplier

7386311, 7386486, 7386424, 7386416, G01N 100, G01N 114, G01N 128

Patent

active

046152261

ABSTRACT:
A precise volume of sample liquid is injected by inserting a syringe into the vaporizing chamber of the injection assembly for a gas chromatograph by performing the entire injection including withdrawal of the syringe in such a short time that essentially none of the liquid is vaporized while in the needle.

REFERENCES:
patent: 3327535 (1967-06-01), Sequeira
patent: 3374660 (1968-03-01), McKinney et al.
patent: 3401565 (1968-09-01), Stoll et al.
patent: 3482450 (1969-12-01), Harris, Sr. et al.
patent: 3501176 (1970-03-01), Arms
patent: 3581573 (1971-06-01), Purcell et al.
patent: 3733909 (1973-05-01), Golovistikov
patent: 3748911 (1973-07-01), Rousselet et al.
patent: 3985016 (1976-10-01), Horuki
patent: 4038874 (1977-08-01), Baldin et al.
patent: 4166094 (1979-08-01), Froehlich et al.
patent: 4414857 (1983-11-01), Brazhnikov et al.
"Dipping Chromatograph Tube Collects Microgram Samples"; Control Engineering; vol. 8, No. 10, p. 121; Oct. 1961; R. C. Palmer.
"Glass Copillary GC with On-Column Injection"; Laboratory Equipment Digest; vol. 17, No. 6, pp. 71, 73 & 75; Jun. 1979; Charles D. Cook.
"The Influence of the Syringe Needle on the Precision and Accuracy of Vaporizing GC Injections"; Journal of High Resolution Chromatography & Chromatography Communications; Jan. 1979; pp. 15-21; K. Grob, Jr. et al.
"Evaluation of Syringe Handling Techniques for Injections into Vaporizing GC Injectors"; Journal of HRC & CC, vol. 3, Dec. 1980; K. Grob, Jr. et al.; pp. 627-633.

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