Shi, Z.-H.; Tang, M.-J.; Zhang, X.-Y.; Tao, Z.-Y.; Wu, M.; Gao, Y.-S.; Gu, R.; Lu, J.-X.; Pu, J.- hua; Ge, Q.-L. Determination of Gossypol in Poultry Egg and Feed by Automated Solid-Phase Extraction and High-Performance Liquid Chromatography. ajc 2013, 25, 4547-4550.