Parameters Proposed methods ASM AMM EXRSM       MOX HCT MOX HCT MOX HCT λ nm 210 nm , 310 nm 210 nm, 310 nm 202 nm 274 nm Linearity   Beers law range 1-13 µg/ml 1-13 µg/ml 1-13 µg/ml 1-13 µg/ml 1-9 µg/ml 1-14 µg/ml Regression equation Y  = 0.1103X+ 0.0015 Y = 0.1103X +0.0015 Y = 1.01X-0.0022 Y = 1.01X-0.0022 Y = 0.1622 X +0.0036 Y = 0.0934 X  -0.0051 Correlation coefficient (r) 0.9999 0.9999 0.9998 0.9998 Accuracy(Mean ±S.D) 99.98 ± 0.526 100.20 ± 0.563 99.92 ± 0.519 100.09 ± 0.529 100.10 ± 0.706 99.91 ± 0.670 LOD 0.185 0.185 0.158 0.158 0.167 0.233 LOQ 0.560 0.560 0.479 0.479 0.505 0.706 Precision (R.S.D %)             Repeatability a 0.502 0.353 0.408 0.398 0.443 0.348 Intermediate precision b 0.598 0.788 0.698 0.639 0.867 0.472 Specificity and selectivity 99.92 99.68 100.29 100.35 100.35 99.81 (Mean ±S.D) ± 1.01 ± 0.922 ± 0.819 ± 0.724 ± 0.981 ± 0.872

a, bIntraday and interday, relative standard deviations for determination of samples of ( 6,8 and 9 µg /ml ) and ( 10,12 and 13 µg/ ml) of MOX and HCT respectively.

Table 4: Validation of the results obtained by applying the proposed methods for the analysis of MOX and HCT