The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 15, 2011
Filed:
May. 30, 2008
Mikhail E. Belov, Richland, WA (US);
Yehia M. Ibrahim, Richland, WA (US);
Biran H. Clowers, West Richland, WA (US);
David C. Prior, Hermiston, OR (US);
Richard D. Smith, Richland, WA (US);
Mikhail E. Belov, Richland, WA (US);
Yehia M. Ibrahim, Richland, WA (US);
Biran H. Clowers, West Richland, WA (US);
David C. Prior, Hermiston, OR (US);
Richard D. Smith, Richland, WA (US);
Battelle Memorial Institute, Richland, WA (US);
Abstract
An ion funnel trap is described that includes a inlet portion, a trapping portion, and a outlet portion that couples, in normal operation, with an ion funnel. The ion trap operates efficiently at a pressure of ˜1 Torr and provides for: 1) removal of low mass-to-charge (m/z) ion species, 2) ion accumulation efficiency of up to 80%, 3) charge capacity of ˜10,000,000 elementary charges, 4) ion ejection time of 40 to 200 μs, and 5) optimized variable ion accumulation times. Ion accumulation with low concentration peptide mixtures has shown an increase in analyte signal-to-noise ratios (SNR) of a factor of 30, and a greater than 10-fold improvement in SNR for multiply charged analytes.