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:
Aug. 02, 1994
Filed:
Sep. 30, 1992
Masahiko Ikeda, Kusatsu, JP;
Hirosi Uchihara, Yamashina, JP;
Horiba, Ltd., Kyoto, JP;
Abstract
Microanalytical methods and associated apparatus for detecting and quantifying organic compounds with very high sensitivity utilize reflected or refracted infrared radiation. By depositing microliter sized quantities of the sample containing solution in a drop-by-drop manner on a water-repellent thin film and rapidly evaporating a solvent, a coherently condensed concentric sample is produced having enhanced sample thickness. This sample is irradiated with infrared radiation which is either reflected or transmitted by the material underlying the thin film. Measuring the spectrum of the infrared radiation passing through the sample detects the existence and concentration of the organic compound. The water-repellent thin film may be provided with multiple small scale depressions, pinholes or zones of reduced surface tension for condensing the sample.