Tandem differential mobility spectrometry with ion dissociation in air at ambient pressure and temperature

文献信息

发布日期 2015-03-13

DOI 10.1039/C4AN02159B

影响因子 4.616

作者

M. R. Menlyadiev, A. Tarassov, A. M. Kielnecker, G. A. Eiceman

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摘要

Proton-bound dimers were dissociated to protonated monomers in air at ambient pressure and temperature using electric fields of ultrahigh Field Asymmetric Ion Mobility Spectrometry (ultraFAIMS) with the onset of dissociation for ethyl acetate as 96 Td and for dimethyl methyl phosphonate as 170 Td. Ions then were measured by differential mobility spectrometry (DMS). Fragment ions were formed with propyl acetate at electric fields of 90 Td or greater. The dissociation in ultraFAIMS of ions, with compensation fields near zero, to form smaller ions with new compensation fields, provided a method to improve peak capacity in DMS without gas modifiers. These findings also lay the foundation for a triple stage DMS with a centre stage for ion dissociation or fragmentation.

期刊推荐

Russian Journal of General Chemistry

Journal of Saudi Chemical Society

Current Opinion in Colloid & Interface Science

Russian Journal of Coordination Chemistry

Crystallography Reports

Chemical Communications

Organic Process Research & Development

Russian Journal of Organic Chemistry

New Journal of Chemistry

Saudi Pharmaceutical Journal

来源期刊

Analyst

CiteScore: 7.8

自引率: 5.6%

年发文量: 653

Analyst publishes analytical and bioanalytical research that reports premier fundamental discoveries and inventions, and the applications of those discoveries, unconfined by traditional discipline barriers.

Tandem differential mobility spectrometry with ion dissociation in air at ambient pressure and temperature

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