HPLC analysis was performed in an Agilent 1100 Series HPLC system equipped with a quaternary solvent pumping system (Waters Series 2695) and a UV/Vis detector (Waters Series 2487 Dual I).
HPLC analysis was performed in an Agilent 1100 Series HPLCsystem equipped with a quaternary solvent pumping system(Waters Series 2695) and a UV/Vis detector (Waters Series 2487Dual I).