Table 1. Detection of the HA Protein in Serum Samples of This Method.

samples	volume of addition (ng mL–1)	found ± SD (ng mL–1)	recovery (%)	RSD (%) n = 3
1	2	2.10 ± 0.023	105.12	1.09
	5	5.02 ± 0.42	100.46	8.36
	10	10.17 ± 0.73	101.72	7.18
	2	1.83 ± 0.012	95.26	0.66
2	5	5.23 ± 0.52	104.54	9.94
	10	10.41 ± 0.33	104.11	3.17
	2	1.90 ± 0.12	94.95	6.31
3	5	4.90 ± 0.39	97.92	7.96
	10	10.16 ± 0.63	101.66	6.20