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:
Dec. 08, 2020
Filed:
Mar. 12, 2012
Milton L. Lee, Pleasant Grove, UT (US);
Xiaofeng Xie, Provo, UT (US);
Jacolin A. Murray, Germantown, MD (US);
Jesse A. Contreras, Bartlesville, OK (US);
Tai Van Truong, Provo, UT (US);
H. Dennis Tolley, Mapleton, UT (US);
Milton L. Lee, Pleasant Grove, UT (US);
Xiaofeng Xie, Provo, UT (US);
Jacolin A. Murray, Germantown, MD (US);
Jesse A. Contreras, Bartlesville, OK (US);
Tai Van Truong, Provo, UT (US);
H. Dennis Tolley, Mapleton, UT (US);
BRIGHAM YOUNG UNIVERSITY, Provo, UT (US);
Abstract
A system for providing standard mixtures of volatile and semi-volatile organic compounds for simultaneous GC and MS calibration in a calibration vial, wherein calibration mixtures are prepared by diluting calibration analytes in granular PDMS such that most of the analytes are in the PDMS phase and the sample can then be taken from the analytes in the headspace vapor in the calibration vial, wherein a reliable calibration sample can be taken from the calibration vial because the analytes in the PDMS phase and the headspace vapor are in thermodynamic equilibrium, and wherein the method provides solvent-less sampling, long-time stability, ease of use, is quantifiable, and related to temperature.