Chinese Journal of Chromatography
Simultaneous determination of three estrogens in feed by solid phase extraction-ultra performance liquid chromatography-tandem mass spectrometry
XIAO Quanwei, WU Wenlin, YANG Wanlin, LIANG Run, LI Shaobo, LIU Lingli
Chinese Journal of Chromatography . 2014, (11): 1209 -1213 .  DOI: 10.3724/SP.J.1123.2014.07039