Research Article
Microwave-Assisted Extraction Coupled with Mass Spectrometry for Determining Five Volatile Compounds from Soy Sauces
Table 3
Accuracy and precision of five volatile organic compounds.
| Compounds | Concentrations (ng·mL−1) | Intraday | Interday (%) | RSD (%) | Day 1 (%) | RSD (%) | Day 2 (%) | RSD (%) | Day 3 (%) | RSD (%) |
| Cyclohexane | 200 | 90.84 | 8.2 | 91.67 | 12.1 | 81.94 | 5.2 | 88.15 | 6.1 | 400 | 95.77 | 2.8 | 91.50 | 10.1 | 86.58 | 3.6 | 91.28 | 5.0 | 600 | 85.28 | 3.9 | 96.86 | 7.5 | 105.71 | 4.8 | 95.95 | 10.7 | Benzene | 100 | 93.24 | 6.6 | 94.80 | 8.8 | 87.26 | 4.5 | 91.77 | 4.3 | 200 | 97.36 | 2.6 | 95.76 | 8.1 | 90.60 | 2.6 | 94.57 | 3.7 | 300 | 87.39 | 3.3 | 97.12 | 6.7 | 104.55 | 4.5 | 96.35 | 8.9 | Toluene | 100 | 89.26 | 7.6 | 90.65 | 8.5 | 85.91 | 5.2 | 88.61 | 2.7 | 200 | 93.76 | 3.0 | 91.65 | 9.4 | 89.31 | 2.8 | 91.57 | 2.4 | 300 | 83.87 | 4.8 | 92.68 | 7.7 | 103.83 | 5.4 | 93.46 | 10.7 | Chlorobenzene | 100 | 89.71 | 7.4 | 92.38 | 8.2 | 87.39 | 4.8 | 89.83 | 2.8 | 200 | 93.72 | 2.8 | 92.93 | 9.0 | 90.78 | 2.7 | 92.48 | 1.6 | 300 | 83.50 | 4.5 | 92.59 | 7.5 | 103.45 | 5.5 | 93.18 | 10.7 | Styrene | 100 | 85.71 | 9.5 | 85.82 | 9.3 | 84.33 | 6.2 | 85.29 | 1.0 | 200 | 91.15 | 3.1 | 89.44 | 10.3 | 90.56 | 3.0 | 90.38 | 1.0 | 300 | 80.86 | 4.8 | 90.30 | 8.4 | 103.70 | 5.9 | 91.62 | 12.5 |
|
|