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:
Jul. 08, 2025
Filed:
May. 14, 2021
Nuctech Company Limited, Beijing, CN;
Tsinghua University, Beijing, CN;
Qingjun Zhang, Beijing, CN;
Yuanjing Li, Beijing, CN;
Zhiqiang Chen, Beijing, CN;
Jianmin Li, Beijing, CN;
Weiping Zhu, Beijing, CN;
Qiufeng Ma, Beijing, CN;
Biao Cao, Beijing, CN;
Lili Yan, Beijing, CN;
Ge Li, Beijing, CN;
Nei Yang, Beijing, CN;
Nuctech Company Limited, Beijing, CN;
Tsinghua University, Beijing, CN;
Abstract
A trace detection device including: an ion mobility tube; a sampling gas path module; a sample injection gas path module configured to introduce a sample carrier gas containing a sample collected by the sampling gas path module toward the ion mobility tube; and a gas chromatography apparatus capable of pre-separating the sample carrier gas, so as to form a pre-separated sample carrier gas; wherein the sample injection gas path module is further configured to be capable of switching between a first mode and a second mode, in the first mode, the sample injection gas path module introduces the sample carrier gas into the ion mobility tube; and in the second mode, the sample injection gas path module introduces the sample carrier gas into the gas chromatography apparatus to pre-separate the sample carrier gas, and the pre-separated sample carrier gas is introduced into the ion mobility tube.