US Patent Issued to Yunnan Academy Of Tobacco Agricultural Sciences on Feb. 17 for "Method for determining tobacco-specific nitrosamines (TSNAs) in tobacco using one-step clean-up coupled with liquid chromatography-tandem mass spectrometry (LC-MS/MS)" (Chinese Inventors)

ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,553,869, issued on Feb. 17, was assigned to Yunnan Academy Of Tobacco Agricultural Sciences (Kunming, China).

"Method for determining tobacco-specific nitrosamines (TSNAs) in tobacco using one-step clean-up coupled with liquid chromatography-tandem mass spectrometry (LC-MS/MS)" was invented by Yong Li (Kunming, China), Tao Pang (Kunming, China), Junli Shi (Kunming, China), Zhongbang Song (Kunming, China), Ge Bai (Kunming, China), He Xie (Kunming, China), Xingxiang Wu (Kunming, China), Niannian Hu (Kunming, China), Suxing Tuo (Kunming, China) and Yunhui Dai (Kunming, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for determining tobacco-sp...