组分

测定值/(mg/L)

平均值

/(mg/L)

标准偏差S

相对标准偏差 RSD/%

1

2

3

4

5

6

7

乙醛

18.14

19.85

18.55

21.02

19.02

18.46

18.23

19.04

1.05

5.52

30.05

29.65

29.20

30.15

29.60

30.24

30.12

29.86

0.38

1.28

41.96

40.41

41.31

38.24

41.73

42.07

40.33

40.86

1.35

3.31

49.70

50.91

51.31

47.96

48.01

47.64

52.16

49.67

1.84

3.70

丙醛

20.63

21.22

18.42

20.91

20.79

21.57

20.56

20.59

1.02

4.94

28.30

27.99

27.21

28.07

28.97

28.54

28.38

28.21

0.55

1.94

40.18

42.94

37.76

38.42

41.38

41.77

41.03

40.05

1.85

4.57

53.14

53.96

47.57

47.69

50.80

51.89

47.57

50.37

2.77

5.49