Figure 3From: Improved methodology for assaying brassinosteroids in plant tissues using magnetic hydrophilic material for both extraction and derivatizationEffect of the DMAPBA amount on the derivatization efficiencies of BRs in acetonitrile (n = 3) (A) and in plant extract (n = 3) (B). BRs were spiked in the sampling solution at 1 ng/mL each.Back to article page