The ABTS radical cation (ABTS+) was produced by reacting 7 mM ABTS with 2.45 mM potassium persulfate (final concentration) and allowing the mixture to stand in the dark for at least 6 h at room temperature prior to use.
The ABTS radical cation (ABTS+) was produced by reacting 7 mM ABTS with 2.45 mM potassium persulfate(final concentration) and allowing the mixture to stand in the dark for at least 6 h at room temperature prior to use.