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Applied Biological Chemistry

Table 1 Regression equations for volatile organic compounds analyzed using GC–MS

From: Evaluation of volatile organic compounds in alcoholic beverages consumed in Korea

Compounds

Equationa

R 2

Precision (% RSD)

Repeatability intraday

Intermediate inter-day

LOD (mg/L)

LOQ (mg/L)

Acetaldehyde

Y = 0.0089x − 0.0823

0.9953

2.25

9.96

0.43

1.28

Formaldehyde

Y = 0.0002x − 0.0074

0.9599

4.75

7.91

5.00

15.00

Methanolb

Y = 0.0036x − 0.087

0.9959

4.05

3.06

3.31

9.94

1-Propanol

Y = 0.0034x − 0.1619

0.9939

1.31

3.41

8.46

25.38

1-Butanol

Y = 0.047x − 1.0589

0.9983

1.75

6.97

0.77

2.31

3-Methyl-1-butanol

Y = 0.0865x + 1.0964

0.9973

2.79

2.20

0.89

2.67

  1. The concentration of each standard solution was 100 mg/L
  2. R 2, correlation coefficient
  3. aThe linearity range of each standard solution was 50–1000 mg/L
  4. bFor the analysis of methanol, the MS was additionally operated in the selected ion monitoring (SIM) mode and the following ions were used: m/z 15, 28, 29, 30, 31, 32 and 31 for qualification and quantification of methanol, respectively
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