BMC Chemistry

Table 5 Precision data for the determination of PAR and DAN by the suggested HPLC technique

From: Hydro-organic mobile phase and factorial design application to attain green HPLC method for simultaneous assay of paracetamol and dantrolene sodium in combined capsules

Drug	Conc. (μg/mL)	Intra-day			Inter-day
Drug	Conc. (μg/mL)	Mean ± S.D	%RSD	% Error	Mean ± S.D	%RSD	% Error
PAR	20.0	100.59 ± 0.70	0.71	0.40	99.33 ± 1.01	1.02	0.59
	60.0	99.88 ± 0.39	0.39	0.23	100.12 ± 1.72	1.72	0.91
	100.0	100.12 ± 0.62	0.63	0.36	100.39 ± 0.92	0.92	0.53
DAN	8.0	100.34 ± 0.91	0.91	0.52	99.66 ± 1.06	1.06	0.61
	12.0	98.72 ± 0.78	0.78	0.46	100.43 ± 1.12	1.12	0.64
	20.0	99.83 ± 0.75	0.76	0.44	99.59 ± 0.89	0.89	0.52

N. B. Each result is the average of three separate determinations

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