All experiments were carried out at 25 °C at a flow-rate of 0.3 mL/min. The mobile phase consisted of 1% formic acid in a mixture of water/acetonitrile (30/70, v/v).
All experiments were carried out at 25 °C at a flow-rate of 0.3 mL/min. The mobile phase consisted of 1% formic acid in a mixture of water/acetonitrile (30/70, v/v).