参考文献:10.1016/0731-7085(94)00042-5 摘要:Yongxin Z, Hendrix C, Busson R, Janssen G, Roets E, Hoogmartens J. Isolation and structural elucidation of an impurity of cefradine. Journal of Pharmaceutical and Biomedical Analysis. 1994 Sep;12(9):1137–40. doi: 10.1016/0731-7085(94)00042-5.