Rectangular Ion Funnel: A New Ion Funnel Interface for Structures for Lossless Ion Manipulations
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چکیده
منابع مشابه
Rectangular Ion Funnel: A New Ion Funnel Interface for Structures for Lossless Ion Manipulations
Structures for lossless ion manipulations (SLIM) have recently demonstrated the ability for near lossless ion focusing, transfer, and trapping in subatmospheric pressure regions. While lossless ion manipulations are advantageously applied to the applications of ion mobility separations and gas phase reactions, ion introduction through ring electrode ion funnels or more conventional ion optics t...
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Structures for Lossless Ion Manipulation (SLIM) represent a novel class of ion optical devices based upon electrodes patterned on planar surfaces, and relying on a combined action of radiofrequency and DC electric fields and specific buffer gas density conditions. Initial experimental studies have demonstrated the feasibility of the SLIM concept. This report offers an in-depth consideration of ...
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Atmospheric Pressure Ion (API) sources, inductively coupled plasma, corona discharges, lasers, electrospray and ion spray sources, are widely used in mass spectrometry. These sources create ions at atmospheric pressure. To analyze the masses of ions, they are introduced into a mass analyzer that is generally maintained at high vacuum. A differential pumping system involving several stages is co...
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A modified ion funnel is described. Counterintuitively, increased spacing between electrodes results in enhanced "focusing" of the ions through the funnel. Consequently, the internal diameter (i.d.) of the funnel need not decrease to the conductance limit (as in previous designs). A simple dc-only lens, which also serves as the conductance limit, combined with the natural flow of gas is used to...
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A highly selective electrode for Bromide ion based on aza pyrilium derivative as an excellentionophore is described.The sensor exhibits a good linear response with a slope of ( 60±1 ) mV per decadeover the concentration range of ( 1×10-3 – 9×10-6 M ) , and a detection limit of ( 3×10-6 M ) of Bromideions .The electrode response is independent of pH in the range of(4.0 –9.5).Selectivity coeffici...
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ژورنال
عنوان ژورنال: Analytical Chemistry
سال: 2014
ISSN: 0003-2700,1520-6882
DOI: 10.1021/ac503564c