Table 3. Analytical Results for Cimetidine Determination (n = 5) in Various Real Samples Using the Proposed Method at Optimal Conditions.

real samples	added (ng mL–1)	founda (ng mL–1)	recovery (%)
human plasma	0.0	60 ± 0.5
	10	69 ± 0.3	98.6
	20	78 ± 0.1	97.5
urine	0.0	NDb
	40	38 ± 0.5	95.0
	60	62 ± 0.6	103.3
tablet	0	50 ± 0.5
	10	56 ± 0.8	93.3
	20	67 ± 0.7	95.7
ampoule	0	55 ± 0.1
	10	66 ± 0.2	101.5
	20	78 ± 0.3	104.0

^ax = ts/√n at 95% confidence (n = 3).

^bND: Not Detected.