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Gas chromatography–mass spectroscopy analysis of chemical components in reference
| Peak | Retention time | Percentage area | Chemical components | Qual |
|---|---|---|---|---|
| 1 | 4.731 | 14.01 | Benzoic acid | 98.83 |
| 2 | 6.837 | 9.43 | Vanillin | 99.29 |
| 3 | 7.336 | 100 | Trans-Cinnamic acid | 98.94 |
| 4 | 8.481 | 88.59 | Diethyl phthalate | 98.97 |
| 5 | 8.666 | 1.11 | n-propyl cinnamate | 85.75 |
