Fig. 2From: Quercetin mitigates rheumatoid arthritis by inhibiting adenosine deaminase in ratsA Isolation of quercetin from fenugreek extract using a silica gel column, B TLC of the isolated and standard quercetin using iodine spray, C TLC of isolated and standard quercetin using FeCl3 spray, D UV–vis spectroscopy, and E FTIR spectrumBack to article page