ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,730,096, issued on Sept. 8, was assigned to Merck Sharp & Dohme (Rahway, N.J.).
"Method for analyzing trace levels of semi-volatile nitrosamines in solid samples" was invented by Rebecca Evans (New York), Xinxin Han (East Brunswick, N.J.), Daniel E. Lee (Sayreville, N.J.), Christine L. Radich (Somerset, N.J.) and Jinjian Zheng (Scotch Plains, N.J.).
According to the abstract* released by the U.S. Patent & Trademark Office: "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 phosphor...