Method and apparatus for spatial compression and increased mobility resolution of ions

Title: Method and apparatus for spatial compression and increased mobility resolution of ions

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Methods and apparatuses for ion peak compression and increasing resolution of ions are disclosed. Packets of ions are introduced into a device. A first electric field is applied for dispersing the ion packets temporally or spatially according to their mobilities. A second intermittent traveling wave is applied for regrouping or merging the dispersed ion packets into a lesser number of trapping regions with narrower peaks. The ions packets are compressed into the narrower peak regions by varying a duty cycle of the intermittent traveling wave.

Inventors:: Ibrahim, Yehia M.; Garimella, Sandilya; Smith, Richard D.

Issue Date:: 2018-07-10

OSTI Identifier:: 1462948

Assignee:: Battelle Memorial Institute (Richland, WA) PNNL

Patent Number(s):: 10,018,592

Application Number:: 15/157,217

Contract Number:: AC05-76RL01830

Resource Relation:: Patent File Date: 2016 May 17

Research Org:: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

Sponsoring Org:: USDOE

Country of Publication:: United States

Language:: English

Subject:: 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 42 ENGINEERING

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