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. 27, 2024
Filed:
Jul. 02, 2021
Applicant:
Asicotech (Shanghai) Company Limited, Shanghai, CN;
Inventors:
Zhirong Gao, Shanghai, CN;
Yanjun Zhang, Shanghai, CN;
Assignee:
Asicotech Company Limited, Shanghai, CN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 30/08 (2006.01); G01N 30/12 (2006.01); G01N 30/20 (2006.01); G01N 30/30 (2006.01); G01N 30/40 (2006.01);
U.S. Cl.
CPC ...
G01N 30/08 (2013.01); G01N 30/12 (2013.01); G01N 30/20 (2013.01); G01N 30/30 (2013.01); G01N 30/40 (2013.01); G01N 2030/201 (2013.01);
Abstract
A chromatographic apparatus for online enrichment of trace and ultra-trace components and an analytical method using the same. The apparatus includes an injection system, a vaporizing chamber, an enrichment system, a thermal box, a sample collection system, a focusing trap, a chromatographic analytical column system, a detector and an electronic control system. The method includes steps of sample enrichment, thermal desorption and back flushing, which are performed through a combination of a four-way valve and an electronic switch valve box.