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Table 2 Recovery of ethanol in the method

From: Non-destructive determination of ethanol levels in fermented alcoholic beverages using Fourier transform mid-infrared spectroscopy

Sample

Unspiked % (w/w)

Spiked 1 % (w/w)

Spiked 2 % (w/w)

Amount added 1 % (w/w)

Amount added 2 % (w/w)

Ethanol % recovery

R1

R2

Birz

6.64

9.03

12.0

2.80

5.75

85.4

93.7

Keribo

0.42

4.20

5.69

3.79

5.06

99.7

104

Netch Tella

2.38

5.58

8.81

3.49

6.36

91.9

101

Tej

3.27

6.34

8.45

3.05

4.97

101

104

Tella

2.39

4.82

8.57

2.39

5.76

102

107