Liquid-Liquid Extraction/Low-Temperature Purification (LLE/LTP) Followed by Dispersive Solid-Phase Extraction (d-SPE) Cleanup for Multiresidue Analysis in Palm Oil by LC-QTOF-MS
Figure 3
(a) Total-ion chromatogram (TIC) corresponding to the LC-QTOF-MS analysis of palm oil sample spiked with 50 ng kg−1 of pesticides. (b) Typical Chromatograms obtained by LC-QTOF-MS of blank palm oil extract sample.