Inter-day precision Intra-day precision S.D of areas.   % R.S.D.   S.D of areas.   % R.S.D.   1.04 1.28 1.89 1.91

Table 2: Intra and inter day precision of HPTLC method a an = 6, Average of three concentrations 200, 600, 1000 ng/spot.