Parameters HPTLC-densitometry HPLC Reference values QO DQ QTF QL QO DQ QTF QL   tR,min (HPLC)/Rf(HPTLC) 0.01 0.08 0.70 0.81 2.53 3.20 3.61 4.24   Tailing factor (T) 0.90 0.76 0.93 1.02 0.73 0.96 1.01 1.18 T≤ 2 Plates number (N)   3040 4608 4688 3991 N >2000 Height equivalent to theoretical plate (HETP; cm plate-1)   0.049 0.032 0.031 0.037 The smaller the value, the higher the column efficiency Resolution (RS) 16 10.47 - 1.6 2.37 2.03 - 2.64 RS≥ 2

Table 3: System suitability test results of the developed chromatographic methods for determination of QTF.