Table 4.

Determination of proteins in samples with PS at pH 3.60

Sample*	HSA added, μg	Proteins found†, μg	Recovery, %	Protein content in sample, mg/ml
Quail egg white	0	38.7 ± 1.7		38.7
	10	50.7, 48.4	120.1, 97.5
Fresh milk	0	58.3 ± 0.6		58.3
	10	69.8, 67.8	115, 95.2
Personal serum	0	20.1 ± 1.5		20.1
	10	31.2, 30.6	111, 105
Chicken serum	0	37.1 ± 1.4		37.1
	20	56.8, 57.7	98.7, 103.2
Eel serum	0	11.9 ± 2.4		11.9
	10	20.9, 22.3	90.0, 104.2

^*0.100 mL of the diluted solution of a sample was added.

^†Average of four replicated determinations in a 10-ml colorimetric flask.