Liquid purification or separation – With means to add treating material – Chromatography
Patent
1983-09-20
1985-07-02
Adee, John
Liquid purification or separation
With means to add treating material
Chromatography
2101983, 55197, 55386, B01D 1508
Patent
active
045266867
ABSTRACT:
An apparatus for controllably and reproducibly introducing, small amounts of a liquid sample into chromatographic systems, especially high resolution gas chromatographic systems with cold injection, thin-layer chromatographic systems and high resolution liquid chromatographic systems, in order to obtain sampling extremely reduced in volume and presenting maximum reliability and reproducibility, uses a sample container having a pipette-like or nozzle-like outlet neck of very small diameter. The liquid placed in the container is submitted to at least one pressure pulse which is controlled in duration and/or amplitude in order to determine emission of a corresponding and controlled quantity of liquid from the outlet neck.
REFERENCES:
patent: 3366149 (1968-01-01), Taft et al.
patent: 3523890 (1970-08-01), Stahl
patent: 3667917 (1972-06-01), Brandt
patent: 4383839 (1983-05-01), Sisti et al.
patent: 4405344 (1983-09-01), Sisti et al.
Gas Phase Chromatography, vol. II by Kaiser, Butterworths, Washington (1963), pp. 59-62.
Journal of Chromatography Library, vol. 9, Zlatkis and Kaiser, Editors, Elsevier Scientific Pub. Co. (1977), pp. 85-94.
Journal of High Resolution Chromatography & Chroma. Communications, vol. 2, by Grob, Jr. and Neukom. (Sep., 1979), pp. 563-569.
Bulletin 106, Rheodyne, Inc. California, 1979.
"Operating Instructions for Model 7010 Sample Injection Valve," Rheodyne, Inc. California, 1981.
Riva Ermete
Sisti Giorgio
Trestiano Sorin
Adee John
Carlo Erba Strumentazione S.p.A.
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