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Table 2 Determination of the studied drugs in the laboratory prepared mixtures

From: Three smart spectrophotometric methods for resolution of severely overlapped binary mixture of Ibuprofen and Paracetamol in pharmaceutical dosage form

Ratio PAR:IBU Ratio difference (recovery %)a Constant center Mean centering (recovery %)a
PAR IBU PAR IBU PAR IBU
2:1 99.44 100.74 98.65 99.87 97.87 95.16
1:2 98.42 99.39 99.34 100.95 98.54 99.87
2:2 101.07 98.87 100.50 99.53 99.93 98.63
3:2 99.41 100.10 100.74 101.08 100.14 98.41
5:4 101.03 99.65 101.22 99.54 101.67 100.26
  1. aAverage of three separate determinations