New Simple Spectrophotometric Method for the Simultaneous Estimation of Paracetamol and Flupirtine Maleate in Pure and Pharmaceutical Dosage Form

Table 5

Results observed by changing the wavelength ± 1 nm.

PAR				FLU
Wavelength; (nm)	Amount; present (mg)	Amount; present (%)	RSD (%)	Wavelength; (nm)	Amount; present (mg)	Amount; present (%)	RSD (%)
244; (𝑛=3)	323.95	99.67±0.10	0.10	343.5; (𝑛=3)	97.96	97.96±0.76	0.78
246; (𝑛=3)	322.49	99.23±0.24	0.24	345.5; (𝑛=3)	97.96	97.96±0.38	0.39

The % RSD value calculated from the robustness study was found to be less than 2% for PAR and FLU, indicating that the method is robust.