Use of Charge Transfer Complexation Reactions for the Spectrophotometric Determination of Sumatriptan in Pharmaceuticals

Table 6

Results of recovery study by standard addition method.

Tablets; studied	DDQ method				I2 method
	SMT in tablets, 𝜇g mL^−1	Pure SMT added, μg mL^−1	Total found, μg mL^−1	Pure SMT recovered*, percent ± SD	SMT in tablets, μg mL^−1	Pure SMT added, μg mL^−1	Total found, μg mL^−1	Pure SMT recovered*, percent ± SD
Suminat-25	16.34	8.00	24.47	101.6 ± 1.22	7.93	4.00	12.00	101.8 ± 2.31
	16.34	16.0	32.17	98.94 ± 1.75	7.93	8.00	16.00	100.9 ± 1.19
	16.34	24.0	40.86	102.2 ± 0.78	7.93	12.0	19.77	98.67 ± 0.75
Suminat-50	16.21	8.00	24.32	101.4 ± 1.66	8.07	4.00	12.02	98.75 ± 1.32
	16.21	16.0	31.98	98.56 ± 1.13	8.07	8.00	16.20	101.6 ± 2.02
	16.21	24.0	39.38	99.00 ± 0.98	8.07	12.0	20.37	102.5 ± 1.06

*Mean value of three determinations.