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

Table 6 Precision data for determination of DRT, CAFF and PAR by the mean centering method

Parameters		DRT concentration (μg/mL)			CAFF concentration (μg/mL)			PAR concentration (μg/mL)
Parameters		4.00	8.00	10.00	3.00	6.00	15.00	10.00	20.00	40.00
Intra-day	Mean*	99.40	100.33	100.05	100.60	99.56	100.04	100.51	99.52	100.09
	± SD	1.07	0.33	0.08	1.00	0.52	0.08	0.52	0.49	0.10
	% RSD	1.08	0.32	0.08	1.00	0.52	0.08	0.52	0.49	0.10
	% Error	0.62	0.35	0.05	0.57	0.44	0.05	0.29	0.29	0.05
Inter-day	Mean*	99.25	100.68	99.63	99.13	100.74	99.63	100.12	99.48	99.84
	± SD	0.44	0.60	0.55	0.55	0.75	0.55	1.44	1.63	0.39
	% RSD	0.44	0.60	0.55	0.56	0.75	0.55	1.44	1.63	0.39
	% Error	0.25	0.19	0.32	0.32	0.30	0.32	0.83	0.94	0.23

ISSN: 2661-801X