For this, 1 L of sample was injected through a 2.0- L sample loop using the partial loop injection mode onto a Waters ACQUITY UPLC HSS T3 column, 1.8 m, 2.1 100 mm, and eluted at 0.32 mLmin 1 with 0.10% formic acid in water (A) and 0.10% formic acid in methanol:acetonitrile (2:3) (B) as solvents
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FDA (2009), US Food and Drug Administration, Deeming Tobacco Products to Be Subject to the Federal Food, Drug, and Cosmetic Act. US Food and Drug Administration, FDA Announces Comprehensive Regulatory Plan to Shift Trajectory of Tobacco-Related Disease, Death, press release, July 28, 2017, Mitchell Hamline School of Law, Public Health Law Center, American Academy of Pediatrics v
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