Fig. 1

a Overlay chromatogram at 257 nm at different concentrations. b Typical chromatogram with optimized conditions gave sharp and symmetric peak with specific retention time of rutin in the leaves of A. marmelos
a Overlay chromatogram at 257 nm at different concentrations. b Typical chromatogram with optimized conditions gave sharp and symmetric peak with specific retention time of rutin in the leaves of A. marmelos