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. 02, 2003
Filed:
Mar. 15, 2001
Hiroaki Waki, Kyoto, JP;
Shimadzu Corporation, Kyoto, JP;
Abstract
In a liquid chromatograph mass spectrometer, a solvent removing tube provided substantially horizontally between a spray chamber and a subsequent chamber is bent at an obtuse angle such that an entrance side of the tube is directed downwardly, and a nozzle is disposed such that a spraying direction of the nozzle is directed substantially downwardly and is approximately perpendicular to a central axis of the entrance side of the tube. Further, a drain for droplet or liquid is provided in front of the spraying direction of the nozzle. Since the spraying direction is oblique to a partition wall, the droplet or liquid sprayed from the nozzle collides against the drain, so that the droplet do not bounce to the entrance side of the solvent removing tube. Accordingly, the noise can be prevented, and the memory effect is also reduced in a high-density sample, so that an accurate analysis can be conducted.