Chen et al 2014 applied a MeOH/MTBE/H20 extraction, to get an integrated metabolome/lipidome extration.
Chang Y, Zhang L, Lu X, Zhao C, Zhu Z, Wang F, Zhang J, Chen S, Zhao Y, Xu G. 2014. A simultaneous extraction method for metabolome and lipidome and its application in cry1Ac and sck-transgenic rice leaf treated with insecticide based on LC–MS analysis. Metabolomics.