Is there a specific range of absorbance for ascorbic acid when performing DPPH radical scavenging assay using Ascorbic acid as a standard ?

I’m performing a DPPH radical scavenging assay using Ascorbic acid as a standard antioxidant, but the inhibition results even for low concentration (25 ug/ml) around 90%, is this normal? however...

07 April 2025 3,620 1 View