Spectrophotometric Determination of Some Non-Sedating Antihistamines Using Erythrosine B

Table 3

Accuracy and precision of the developed spectrophotometric method.

Authentic drug	Concentration (μg/mL)	RSD %		Accuracy* %
		Inter-day precision	Intra-day precision
CTZ	2	0.69	0.85	98.17
	4	1.31	0.59	101.76
	6	0.85	0.85	100.99
EBS	2	1.22	1.15	99.20
	4	1.27	0.76	98.45
	6	0.26	0.38	99.46
FXD	2	1.59	1.07	99.80
	4	0.73	0.65	99.84
	6	0.53	0.51	101.43
KET	2	0.98	0.59	99.33
	4	0.73	0.71	100.24
	6	0.37	0.28	101.90
LOR	2	1.64	1.29	99.87
	4	0.62	0.45	99.66
	6	0.33	0.22	99.83

∗Average of six replicates.