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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.:

US 12730096 B1

PDFFull Text
Date of Patent:
Sep. 08, 2026

Filed:

Jul. 11, 2022

Method for analyzing trace levels of semi-volatile nitrosamines in solid samples

Applicant:

Merck Sharp & Dohme Llc, Rahway, NJ (US);

Inventors:

Rebecca Evans, New York, NY (US);

Xinxin Han, East Brunswick, NJ (US);

Daniel E. Lee, Sayreville, NJ (US);

Christine L. Radich, Somerset, NJ (US);

Jinjian Zheng, Scotch Plains, NJ (US);

Assignee:

Merck Sharp & Dohme, Rahway, NJ (US);

Attorneys:

Sylvia A. Ayler

Catherine Fitch

Primary Examiner:

David L Singer

Int. Cl.
CPC ...
G01N 30/30 (2006.01); G01N 30/14 (2006.01); G01N 30/62 (2006.01); G01N 30/72 (2006.01); G01N 33/15 (2006.01);
U.S. Cl.
CPC ...
G01N 30/30 (2013.01); G01N 30/14 (2013.01); G01N 30/62 (2013.01); G01N 30/7206 (2013.01); G01N 33/15 (2013.01); Y10T 436/170769 (2015.01);
Abstract

This invention describes a novel method encompassing preparing a nitrosamine sample, adding in relevant chemicals that reduces or eliminates in situ nitrosamine formation, utilizing full evaporation static headspace gas chromatograph coupled with nitrogen phosphorous detector (FE-SHSGC-NPD), and analysis of rapid results in the gaseous phase for sensitive detection of semi-volatile nitrosamines, including NDMA.

Find Patent Forward Citations

Evans, Rebecca. (2026). Method for analyzing trace levels of semi-volatile nitrosamines in solid samples (U.S. Patent No. 12730096). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12730096

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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