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:
Aug. 21, 2018
Filed:
Jul. 28, 2017
Thermo Finnigan Llc, San Jose, CA (US);
Scott T. Quarmby, Round Rock, TX (US);
Joshua T. Maze, Round Rock, TX (US);
Nathaniel L. Sanders, Austin, TX (US);
Thermo Finnigan LLC, San Jose, CA (US);
Abstract
A mass spectrometry apparatus includes an ion source configured to generate ions; an ion guide configured to guide ions from the ion source towards a detector; the ion detector configured to detect ions; and a mass spectrometry controller. The mass spectrometry controller is configured to generate a tune curve for the ion guide; determine an observed low mass cutoff for the ion guide from the tune curve; calculate an effective r0 for the ion guide based on the observed low mass cutoff; determine an RF voltage based on the effective r0 and the RF frequency; apply the RF voltage to the ion guide; and perform a mass analysis of ions in a sample.