Parameter PLS CRACLS Comparison5 % Recovery 96.81 101.46 99.72 96.68 102.47 99.64 91.29 98.14 100.96 99.88 97.76 98.58 99.41 101.76   98.76 101.85 101.35 99.36 97.84 101.45 98.28 100.51 95.99 97.25 97.63 100.20 99.72 S.D. 2.75 1.92 0.97 Variance 7.56 3.68 0.94 Students t-value 1.46 0.47   Variance ratio F- value 8.04 3.91

Tabulated t- and F-values at p=0.05 are: 1.782 and 8.812, respectively22

Table 3: Assay of aceclofenac in synthetic mixtures using the proposed and comparison methods.