Fig. 2

HPTLC chromatogram of human plasma spiked with PX (I.S), REM, DEX, and FVP using a developing system of ethyl acetate: hexane: acetic acid (9: 1.5: 0.3, by volume)
HPTLC chromatogram of human plasma spiked with PX (I.S), REM, DEX, and FVP using a developing system of ethyl acetate: hexane: acetic acid (9: 1.5: 0.3, by volume)