Smart green spectrophotometric assay of the ternary mixture of drotaverine, caffeine and paracetamol in their pharmaceutical dosage form

Table 4 Precision data for determination of DRT, CAFF and PAR by the derivative method

Parameters		DRT concentration (μg/mL)			CAFF concentration (μg/mL)			PAR concentration (μg/mL)
Parameters		4.00	8.00	10.00	3.00	3.00	15.00	10.00	20.00	40.00
Intra-day	Mean	100.58	99.47	100.05	100.64	99.5	100.05	100.06	99.90	99.98
	± SD	0.15	0.88	0.07	0.90	0.74	0.07	0.21	0.45	0.30
	% RSD	0.15	0.88	0.07	1.00	0.74	0.07	0.21	0.45	00.31
	% Error	0.51	0.51	0.04	0.58	0.43	0.04	0.12	0.03	0.04
Inter-day	Mean	100.0	100.34	99.61	100.25	99.90	99.61	98.18	100.5	99.95
	± SD	0.89	0.99	0.78	1.00	1.82	0.78	0.22	1.36	0.58
	% RSD	0.89	0.99	0.78	0.90	1.82	0.78	0.23	1.35	0.58
	% Error	0.087	0.58	0.46	0.52	1.06	0.46	0.14	0.78	0.18

ISSN: 2661-801X