Yang1 J, Kong1 W, Cui1 Z, Liu1 W, Chen1 Y, Yang1 G, et al. Ultrasonic Acid Digestion and Graphite Furnace Atomic Absorption Spectrometry for the Determination of Heavy Metal Ions in Tobacco. ajc [Internet]. 2011 Jan. 22 [cited 2024 Jun. 30];23(5):1986-8. Available from: https://asianpubs.org/index.php/ajchem/article/view/10349