Green Analytical Methods for the Separation of Seven Antihistamines: Application in Separation of Azelastine and Related Impurities in Nasal Solution

Table 5

The inter- and intraday precision data obtained in the analysis of AZE sample solutions (40.0 μg.mL⁻¹).

	Accessed AZE (μg mL^−1)
Inter-day	38.11 ± 0.58
RSD (%)	1.52
Intra-day
Day 1	38.43 ± 0.54
RSD (%)	1.40
Day 2	38.26 ± 0.42
RSD (%)	1.10
Day 3	37.71 ± 0.54
RSD (%)	1.44