System for DMS peak resolution
AssigneeSionex Corporation
InventorsLawrence A. Kaufman, Raanan A. Miller, Erkinjon G. Nazarov, Evgeny Krylov, Gary A. Eiceman
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Abstract
An apparatus for identification of chemical species by measurement of mobility as a function of high electric field and for generating unique compound-dependent signatures based on ion mobility at a plurality of peak RF voltages for a given compensation. The resulting detection data is compared against a library of data in order to identify a detected chemical species.
Claims6
A method for identification of an unknown item in a sample traveling through an excitation field, the excitation field having a varying influence upon the mobility behavior of the sample traveling the excitation field, the method comprising the steps of:
- generating a varying excitation field;
- subjecting a sample to the excitation field, the sample having field-dependent mobility behavior that reflects field conditions, and the excitation field having sufficient strength to fragment the sample;
- subjecting the sample to a plurality of field conditions in the excitation field;
- compensating the plurality of field conditions to pass the unknown item through the excitation field;
- and
- identifying the unknown item as a member of a known species, the identification being based on known field-dependent mobility behavior of the known species in the plurality of compensated field conditions.
Dependencies are inferred from the claim text.