Figure 2.

Mean relative extraction efficiencies (n = 3) for seven arsenolipids depending on solvent mixture (100 mg CRM extracted with 5 mL solvent/MeOH (2 + 1, v/v). For each arsenolipid, values are recorded as the amount of arsenolipid extracted by a particular solvent relative to the amount extracted by the most efficient solvent (expressed as %); detailed data are presented in Supporting Information, Table S-1).