1 Analytical and Bioanalytical Chemistry Electronic Supplementary Material Development and application of a comprehensive lipidomic analysis to investigate Tripterygium wilfordii-induced liver injury Tong Xie, Xueping Zhou, Shouchuan Wang, Yan Lu, Huaxu Zhu, An Kang, Haishan Deng, Jianya Xu, Cunsi Shen, Liuqing Di, Jinjun Shan