Samples

Measured (mM)

Added (mM)

Found (mM)

Recovery (%)

RSD (n = 3)

农夫山泉

1.54

4.0

5.67

103.3

5.0 %

康师傅

1.59

4.0

5.51

98.0

5.2 %

娃哈哈

1.61

4.0

5.45

96.0

4.3 %

食品包装袋

2.01

4.0

5.92

97.8

4.5 %

奶瓶

1.05

4.0

5.30

106.3

5.8 %