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:
Sep. 30, 1997
Filed:
May. 15, 1996
Shigeaki Shibamoto, Kyoto, JP;
Shimadzu Corporation, Kyoto, JP;
Abstract
A gas chromatograph for analyzing a selected target component in a liquid sample, which also contains a solvent, has a sample injection port, a temperature control unit, a split ratio control unit and a vaporization control unit. The sample injection port contains a pre-column filled with a packing material capable of holding a liquid sample injected into the pre-column. The sample injection port has a carrier gas inlet, a split vent, and an opening connected to a column. The temperature control unit is for controlling temperature of the sample injection port, and the split ratio control unit is for controlling the split ratio, defined as the ratio between gas flow rate to the column and the rate of the gas being discharged through the split vent. The vaporization control unit serves to control both the temperature control unit and the split control unit in coordination with each other according to the boiling points of the target component and the solvent in the liquid sample.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile