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Analytical Letters Volume 49, 2016 - Issue 2
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Mass Spectrometry

Electro-Filtering Spray Ionization Source for Soil Analysis

Yinjuan ChenDepartment of Chemistry and Laser Chemistry Institute, Fudan University, Shanghai, China
,
Chongsheng XuDepartment of Chemistry and Laser Chemistry Institute, Fudan University, Shanghai, China
,
Fuxing XuSchool of Information Science and Technology, Fudan University, Shanghai, China
,
Kai YangNational Environment Monitoring Center, Beijing, China
,
Qiang WangNational Environment Monitoring Center, Beijing, China
,
Xin ZhaoNational Environment Monitoring Center, Beijing, China
,
Yuanyuan WangSchool of Information Science and Technology, Fudan University, Shanghai, China
,
Bin ChenNational Environment Monitoring Center, Beijing, ChinaCorrespondence[email protected]
&
Chuan-Fan DingDepartment of Chemistry and Laser Chemistry Institute, Fudan University, Shanghai, ChinaCorrespondence[email protected]
 show all
Pages 282-289 | Received 05 Jan 2015, Accepted 02 Jul 2015, Published online: 03 Nov 2015
 
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ABSTRACT

An electro-filtering spray ionization source for ambient mass spectrometry is reported. The ion source was assembled with a conical metal filter with a paper cone. The performance of the new ion source was characterized by the analysis of soil. Soil was directly introduced into the filter-paper cone and solvent was added. Ions were produced at the filter-paper tip when a high voltage was applied. The results by electro-filtering spray ionization were in good agreement with the results using conventional electrospray ionization with complex sample preparation. Advantages of electro-filtering spray ionization include simplicity, speed, and convenient operation that may allow in situ analysis in ambient atmospheric conditions.

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