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Table 2 Results of the determination of Tyr in milk and its product samples

From: Determination of tyrosine by sodium fluorescein-enhanced ABEI–H2O2–horseradish peroxidase chemiluminescence

Samples

Added (μmol/L)

Found (μmol/L)

Recovery (%)

Powdered milk

0

2.46±0.0600

1.5

4.01±0.101

103.2

3.0

5.42±0.160

98.3

Goat milk powder

0

3.21±0.120

1.5

4.68±0.070

98.0

3.0

6.19±0.110

99.3

Yogurt

0

1.32±0.130

1.0

2.28±0.090

96.0

2.0

3.36±0.110

102.0

Fresh milk

0

2.52±0.080

1.0

3.49±0.120

97.0

2.0

4.57±0.070

102.0