International comparison APMP. QM-S6: determination of clenbuterol in porcine meat by isotopic dilution mass spectrometry
XU Sen, LI Xiuqin, LUO Ximing, ZHANG Qinghe
Chinese Journal of Chromatography . 2014, (10): 1104 -1110 .  DOI: 10.3724/SP.J.1123.2014.06024