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:
Apr. 25, 2023
Filed:
Feb. 04, 2020
Hitachi High-tech Corporation, Tokyo, JP;
Yuka Sumigama, Tokyo, JP;
Yuichiro Hashimoto, Tokyo, JP;
HITACHI HIGH-TECH CORPORATION, Tokyo, JP;
Abstract
The invention provides a liquid chromatograph mass spectrometer which prevents contamination of a pump and a column and can perform mass calibration without adding a complicated mechanism. This liquid chromatograph mass spectrometer includes a liquid chromatograph including a liquid feed pump configured to feed a mobile phase solvent, a mass spectrometer configured to analyze a mass of a sample, and a standard sample container configured to be connected in series with the liquid chromatograph and the mass spectrometer in a flow path that connects the liquid chromatograph and the mass spectrometer and configured to house a standard sample for mass calibration.