Research Article
Determination of Phthalate Plasticisers in Palm Oil Using Online Solid Phase Extraction-Liquid Chromatography (SPE-LC)
Table 2
The effect of amount of n-hexane (mL per mL of oil), on the recovery and RSD of phthalates in samples spiked with 5 mg L−1.
| | | Amount of n-hexane (mL) | Compounds
| 1 | | 0.8 | | 0.5 | | 0 | | | % Recovery | % RSD | % Recovery | % RSD | % Recovery | % RSD | % Recovery | % RSD |
| | DMP | 96.8 | 5.4 | 97.8 | 1.0 | 76.7 | 2.3 | 81.3 | 2.1 | | DEP | 81.4 | 5.7 | 72.8 | 5.3 | 36.1 | 5.8 | 69.6 | 3.3 | | DnPP | 74.0 | 6.3 | 89.7 | 3.1 | 63.7 | 4.0 | 72.2 | 5.5 | | DPhP | 73.5 | 0.9 | 89.9 | 2.2 | 67.8 | 0.8 | 69.6 | 9.0 | | BBP | 102.9 | 4.4 | 100.1 | 2.5 | 94.4 | 3.3 | 96.3 | 8.5 | | DBP | 101.7 | 1.0 | 100.7 | 2.7 | 73.6 | 3.4 | 86.7 | 4.9 |
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