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:
Jan. 17, 2017
Filed:
Nov. 03, 2015
Bruker Daltonik Gmbh, Bremen, DE;
Oliver Räther, Lilienthal, DE;
Melvin Andrew Park, Billerica, MA (US);
Other;
Abstract
The invention relates to the operation of ion mobility spectrometers based on gases pushing the ions over electrical field barriers, preferably in combination with mass spectrometers, and relates to trapped ion mobility spectrometers ('TIMS'). The invention proposes to accumulate and to scan the ions of a selected range of mobilities by using a long and flat electric field ramp created by additional voltages. By a voltage supplied at the beginning of the flat ramp, the lowest mobility of the mobility range of ions to be collected can be selected. By the difference of the voltages at the beginning and the end, the width of the mobility range is determined. The spatial zoom advantageously can collect considerable more ions of interest than a temporal zoom without severe losses by space charge effects, and more ions can be detected in the mass-mobility map.