Table 2.

Estimation of accuracy and precision of selected approach

Sample number	Taken Conc. (µg mL− 1)	Found Conc. (µg mL− 1)	% Recovery * ± RSD
1	1.0	1.01	101.00 ± 0.60
2	2.0	2.05	102.50 ± 0.55
3	3.0	3.06	102.00 ± 0.21
4	4.0	4.01	100.25 ± 0.84
5	5.0	5.10	102.00 ± 0.81
Intra-day precision	2.0	2.03	101.50 ± 0.77
	4.0	4.0.2	100.50 ± 0.51
	6.0	6.06	101. 00 ± 0.94
Inter-day precision	2.0	2.01	100.50 ± 0.70
	4.0	3.99	99.75 ± 0.80
	6.0	5.94	99.00 ± 0.35

^*: Average of three determinations. RSD: Relative standard deviation