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Table 4 Analysis results of ET and TC in commercial mixture products (Etotio® tablets) using the multivariate calibration methods (PLS, PCR, and ILS)

From: Design, optimization, and validation of chemometrics-assisted spectrophotometric methods for simultaneous determination of etodolac and thiocolchicoside in pharmaceuticals

Commercıal preparation Method Active substance Mean ± SD Recovery % RSD %
Etotio® tablets PLS ET (400 mg) 396.5 ± 14.21 99.12 3.583
TC (8 mg) 7.919 ± 0.284 98.98 3.591
PCR ET (400 mg) 395.57 ± 10.26 99.39 2.582
TC (8 mg) 7.94 ± 0.326 99.25 4.099
ILS ET (400 mg) 393.31 ± 4.23 98.33 1.08
TC (8 mg) 7.89 ± 0.24 98.73 3.08