Figure 4
The amine release as a function of extraction time, for water–methanol (◇), 95% ethanol (◯), 10% ethanol (△) and 3% acetic acid (☐) solutions.
Figure 4 | SpringerPlus
The amine release as a function of extraction time, for water–methanol (◇), 95% ethanol (◯), 10% ethanol (△) and 3% acetic acid (☐) solutions.