3.4. Distinguishing olive oil and sunflower oil
Measurements with oil as reference instead of 2-butanol
demonstrate distinct differences between the two oils.
Cooling curves of oil against oil show a small differential
peak (Fig. 4) for all three comparisons: SFO vs SFO, EVOO
vs EVOO, and SFO vs EVOO, the last one giving the largest
differential peak.
The heating curves show more interesting differences,
with large peaks for the EVOO vs SFO samples, while Dirk
vs Goldsun SFO gives no significant peaks. Furthermore,
Puglia EVOO vs itself remarkably shows larger peaks than
Dirk vs Goldsun, but still not as much as EVOO vs SFO.