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

Table 3

Recovery results for PAR and FLU.

Concentration (%)	PAR				FLU
PAR/FLU; (𝑛=3)	Added amount (mg)	Amount recovered (mg)	Amount recovered (%)	RSD (%)	Added amount (mg)	Amount recovered (mg)	Amount recovered (%)	RSD (%)
50	6.25	6.27	100.42±0.32	0.32	1.92	1.91	99.50±0.76	0.76
75	9.37	9.39	110.16±0.17	0.17	2.88	2.61	100.09±0.51	0.50
100	12.50	12.54	100.34±15	0.15	3.84	3.82	99.50±0.38	0.38
125	15.62	15.49	99.18±0.18	0.19	4.80	4.76	99.15±0.61	0.61
150	18.75	18.81	100.35±0.07	0.07	5.76	5.68	98.47±0.50	0.51

The percentage recovery varied from 99.18 to 100.02 for PAR and 98.47 to 100.09 for FLU, indicating good accuracy of the method.