Validation Mixture No. % Recovery
PLS CRACLS
Aceclofenac Diclofenac Aceclofenac Diclofenac
1 96.81 116.70 101.46 102.26
2 96.68 124.19 102.47 92.87
3 91.29 130.94 98.14 126.59
4 99.88 93.91 97.76 114.30
5 99.41 86.80 101.76 97.89
6 98.76 104.75 101.85 92.19
7 101.35 93.72 99.36 117.98
8 97.84 93.57 101.45 104.98
9 98.28 107.17 100.51 109.85
10 95.99 108.66 97.25 119.52
97.63 106.04 100.20 107.84
± S.D. 2.75 14.52 1.92 11.76
R.S.D. 2.82 13.69 1.92 10.90
RMSEPa 0.367 0.184 0.126 0.142
aRMSEP is the root mean standard error of prediction
Table 2: Assay results of aceclofenac and diclofenac in validation mixtures by the proposed multivariate methods.