Method Development for Simultaneously Determining Indomethacin and Nicotinamide in New Combination in Oral Dosage Formulations and Co-Amorphous Systems Using Three UV Spectrophotometric Techniques

Table 5

Data of the specificity test of NCT for the proposed methods.

Ratio (IND : NCT)	IND concentration (μg/mL)	NCT (7.5 μg/mL) recovery%
		ZCD2	DWD1	RS
1 : 3	2.50	101.80	100.52	101.41
1 : 2	3.75	101.40	98.19	101.79
1 : 1	7.50	98.12	98.10	99.42
1 : 0.5	15.00	98.44	98.60	98.99
1 : 0.33	22.50	98.28	100.19	98.39
1 : 0.17	45.00	101.96	114.41	93.86
SRF for RS method				0.9987

Mean recovery % of three experiments.