The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 02, 1985
Filed:
Sep. 20, 1983
Carlo Erba Strumentazione S.p.A., Rodano, IT;
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.