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. 10, 2012
Filed:
May. 07, 2009
Zhiqiang Chen, Beijing, CN;
Yuanjing LI, Beijing, CN;
Hua Peng, Beijing, CN;
Qingjun Zhang, Beijing, CN;
Jin Lin, Beijing, CN;
Shaoji Mao, Beijing, CN;
Zhude Dai, Beijing, CN;
Shiping Cao, Beijing, CN;
Zhongxia Zhang, Beijing, CN;
Yangtian Zhang, Beijing, CN;
Dexu Lin, Beijing, CN;
Qinghua Wang, Beijing, CN;
Shaofeng Wang, Beijing, CN;
Hui LI, Beijing, CN;
Zhiqiang Chen, Beijing, CN;
Yuanjing Li, Beijing, CN;
Hua Peng, Beijing, CN;
Qingjun Zhang, Beijing, CN;
Jin Lin, Beijing, CN;
Shaoji Mao, Beijing, CN;
Zhude Dai, Beijing, CN;
Shiping Cao, Beijing, CN;
Zhongxia Zhang, Beijing, CN;
Yangtian Zhang, Beijing, CN;
Dexu Lin, Beijing, CN;
Qinghua Wang, Beijing, CN;
Shaofeng Wang, Beijing, CN;
Hui Li, Beijing, CN;
Nuctech Company Limited, Beijing, CN;
Abstract
Disclosed is an ion source comprising a plate-shaped source body which has radioactivity on its both sides and allows positive and negative ions to penetrate through the source body. The present invention gives beneficial effects. First, the ion source structure can improve the ionization efficiency of sample molecules, and the generated sample ions have a centralized distribution within a flat space on both sides of the source body. Such distribution of ion cloud facilitates to improve the IMS sensitivity. Meanwhile, the source body of the present invention has a transmittance in itself. Thus, positive and negative ions generated on both sides of the source body can penetrate through the source body and be separated to the both sides of the source body. In this way, it is possible to improve the utilization efficiency of ions.