Research Article
Study on Carbonyl Emissions of Diesel Engine Fueled with Biodiesel
Table 3
The retention time and resolution of Agilent-C18 columns.
| Carbonyl compounds | Retention time/min | Resolution |
| Formaldehyde-DNPH | 3.454 | 1.850261 | Acetaldehyde-DNPH | 4.066 | 1.935543 | Propylene aldehyde-DNPH | 4.474 | 3.459658 | Acetone-DNPH | 5.892 | 1.032619 | Propionaldehyde-DNPH | 6.651 | 1.932641 | Crotonaldehyde-DNPH | 8.307 | 3.995684 | Butanone-DNPH | 10.703 | 1.954623 | Butyraldehyde-DNPH | 10.925 | 0.896578 | Benzene formaldehyde-DNPH | 11.358 | 0.379284 | Isovaleraldehyde-DNPH | 12.294 | 2.759839 |
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