From: A new gas chromatographic method development and validation for the simultaneous determination of ibuprofen and caffeine in bulk and pharmaceutical dosage form
Parameter
IBUa
CAFa
%RSD of tR
0.05
0.04
%RSD of area (drug/IS)
0.54
0.45
Number of theoretical plates
129940
125500
Tailing factor
1.02
1.10
Resolutionb
19.99
25.01