Determination of 11 sulfonamides in pork by two-step liquid-liquid extraction-solid phase extraction purification coupled with high performance liquid chromatography-tandem mass spectrometry
LIU Peiyong, ZHANG Hui, MI Zhijin, ZHANG Liangcheng, ZHANG Guangren
Chinese Journal of Chromatography . 2019, (10): 1098 -1104 .  DOI: 10.3724/SP.J.1123.2019.04005