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:
Jan. 22, 2019
Filed:
Mar. 04, 2014
Tofwerk Ag, Thun, CH;
Richard Knochenmuss, Seftigen, CH;
TOFWERK AG, Thun, CH;
Abstract
The invention relates to a method and an apparatus for determining a chromatogram. The method includes a first step where a sample is inserted in two separation columns (), wherein for each separation column (), a corresponding part of the sample is inserted in the respective separation column () with a corresponding insertion device () which is controlled by a corresponding modulation function for generating a corresponding modulated part of the sample in the respective separation column (), wherein the modulation functions with which the parts of the sample are modulated in the separation columns () differ from each other. Furthermore, the method includes a second step where each modulated part of the sample is guided through the respective separation column (), a third step where a signal of each modulated part of the sample is measured with a same detector () after having passed the respective separation column (), and a fourth step where for each separation column (), a correlation of the signal and the modulation function with which the corresponding part of the sample is modulated in the respective separation column () is calculated in order to determine the chromatogram of the respective separation column ().