molecules Article Qualitative and Quantitative Determination of Decoquinate in Chicken Tissues by Gas Chromatography Tandem Mass Spectrometry Shuyu Liu 1,2, Yayun Tang 1,2, Yang Lu 1,2, Yawen Guo 1,2, Kaizhou Xie 1,2,*, Fanxun Guan 1,2, Pengfei Gao 1,2, Yali Zhu 1,2, Yuhao Dong ...