Water was freshly taken daily from a Milli-Q system (Millipore, Bedford, MA). Methanol, ethanol, trichloroacetic acid (TCA), and acetic acid (AA) were from Scharlau Chemie (Barcelona, Spain)
Water was freshly taken daily from a Milli-Qsystem (Millipore, Bedford, MA). Methanol, ethanol, trichloroaceticacid (TCA), and acetic acid (AA) were from ScharlauChemie (Barcelona, Spain)