Ion focusing

Cooks, Robert Graham; Baird, Zane; Peng, Wen-Ping

Title: Ion focusing

Patent · Tue Nov 10 00:00:00 EST 2015

OSTI ID:1225704

Cooks, Robert Graham; Baird, Zane; Peng, Wen-Ping

The invention generally relates to apparatuses for focusing ions at or above ambient pressure and methods of use thereof. In certain embodiments, the invention provides an apparatus for focusing ions that includes an electrode having a cavity, at least one inlet within the electrode configured to operatively couple with an ionization source, such that discharge generated by the ionization source is injected into the cavity of the electrode, and an outlet. The cavity in the electrode is shaped such that upon application of voltage to the electrode, ions within the cavity are focused and directed to the outlet, which is positioned such that a proximal end of the outlet receives the focused ions and a distal end of the outlet is open to ambient pressure.

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Research Organization:: Purdue Univ., West Lafayette, IN (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: FG02-06ER15807

Assignee:: Purdue Research Foundation (West Lafayette, IN)

Patent Number(s):: 9,184,038

Application Number:: 14/391,867

OSTI ID:: 1225704

Resource Relation:: Patent File Date: 2013 May 16

Country of Publication:: United States

Language:: English

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Non-thermal plasma jet device as source of spatial ionization for ambient mass spectrometry and method of application Martínez Jarquín, Sandra; Winkler, Robert https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/9362100 US Patent Document 9,362,100	patent	June 2016
Apparatus and method for rapid chemical analysis using differential desorption Musselman, Brian D. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/9558926 US Patent Document 9,558,926	patent	January 2017
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