Table 2.

Precision analysis of the developed GSP₂₇₀-LFIA test strip in testing HBsAg-positive serum with concentrations of 10, 50, 100, 200, and 500 ng/mL.

Diluted concentration (ng/mL)	Intra-assay precisiona)					Inter-assay precisionb)
	Recovered concentration		CV (%)	Recovery (%)			Recovered concentration		CV (%)	Recovery (%)
500	491.8±9.89		2.01	98.36			502.89±65.32		12.99	100.58
200	162.83±10.52		6.46	81.42			159.05±16.17		10.16	79.53
100	105.08±8.27		7.87	105.08			110.17±6.98		6.34	110.17
50	43.27±4.72		10.91	86.54			48.89±3.24		6.62	97.78
10	9.02±1.03		11.41	90.20			9.17±1.23		13.41	91.70

a) The assay was carried out in triplicates on the same day; b) The assay was performed on three consecutive days.