Eco-friendly, sensitive and inventive first derivative synchronous spectrofluorimetric determination of ciprofloxacin and phenylephrine in their pure form, single and combined eye drops

Table 4 Precision data of the proposed first derivative synchronous method

Drug	Conc. (µg /mL)	Inter-day precision			Intra-day precision
Drug	Conc. (µg /mL)	Mean ± SD	% RSD	% Error	Mean ± SD	% RSD	% Error
CFX	0.5	100.16 ± 0.98	0.98	0.56	100.22 ± 1.08	1.08	0.62
	3.0	99.36 ± 1.55	1.56	0.90	99.57 ± 1.48	1.48	0.85
	5.0	99.95 ± 1.18	1.19	0.68	99.68 ± 0.98	0.98	0.57
PLN	0.05	100.42 ± 1.35	1.35	0.78	99.86 ± 1.21	1.21	0.70
	0.1	99.64 ± 1.61	1.62	0.93	99.64 ± 1.28	1.29	0.74
	0.5	100.35 ± 1.18	1.18	0.68	99.79 ± 1.08	1.08	0.62

ISSN: 2661-801X