Table 5.

Determination of BLF in pharmaceutical tablet and human blood serum using the proposed method at Bi₂O₃/ZnO/GCE.

Sample	Standard added (nM)	Standard foundb (nM)	Recovery (%)a	RSD (%)
B-Cin tablet (50 mg)	100	98.73 ± 0.47	98.73	0.81
	300	298.8 ± 0.77	99.6	0.39
	500	494.8 ± 0.63	98.96	0.59
Blood serum	100	99.12 ± 1.23	99.12	0.91
	300	296.7 ± 0.66	98.9	0.32
	500	501.9 ± 1.02	100.4	0.75

^a[standard found/standard added] × 100.

^bAmount found represents the average of six observations (n = 6).