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. 27, 2016
Filed:
Sep. 04, 2012
Yasuhiro Mito, Kyotanabe, JP;
Yasuhiro Mito, Kyotanabe, JP;
SHIMADZU CORPORATION, Kyoto-shi, JP;
Abstract
An apparatus and a method for chromatogram peak purity determination are provided, where the chromatogram's dimensions consist of retention time, wavelength and absorbance. The apparatus or method accumulates, at each retention time, absorbance in the wavelength direction for all or a part of a wavelength range in a predetermined retention time range; extracts a plurality of groups where, for each group, the absorbance accumulation value is the same for one point on a rising slope and one point on a falling slope regarding a peak that exists on a chromatogram that is prepared based on a 2-dimensional data whose dimensions are absorbance accumulation value and retention time; calculates similarities between absorption spectrum pattern at one point on the rising slope and at one point on the falling slope for each group; and determines from the plurality of groups, whether the peak consists of a single component based on similarity.