Abstract
A method for simultaneous determination of 12 priority phthalates, adipate and polycyclic aromatic hydrocarbons (PAHs) in edible oils by isotope dilution-gas chromatography-mass spectrometry (ID-GC-MS) was developed for fast, accurate and trace analysis. The extraction and clean-up procedures were optimised, and using stable isotope-labelled internal standards for each analyte, relative standard deviations (RSDs) of 0.92-10.6% and spiked sample recoveries of 80.6-97.8% were obtained. Limits of detection for PAHs were in the range of 0.15-0.77 μg/kg and those for phthalates were in the range of 4.6-10.0 μg/kg. The calibration curves exhibited good linearities with regression coefficients of R2 ≥ 0.99. Twelve edible oils were examined to evaluate the efficiency of this method. Among the 12 analytes, dibutyl phthalates (DBP), diethylhexyl phthalates (DEHP), diethylhexyl adipate (DEHA), benzo[a]anthracene (B[a]A), chrysene (Chry) and benzo[b]fluoranthene (B[b]F) were detected in the range of 1.17-806 μg/kg.
| Original language | English |
|---|---|
| Pages (from-to) | 168-175 |
| Number of pages | 8 |
| Journal | Food Additives and Contaminants: Part B Surveillance |
| Volume | 7 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2014 Jul |
Bibliographical note
Funding Information:Financial support from the Korea Food and Drug Administration [grant number 10162KFDA994, 2012] and the Korea Institute of Science and Technology [grant number 2VO2952, 2013] are gratefully acknowledged.
All Science Journal Classification (ASJC) codes
- Food Science
- Toxicology
- Public Health, Environmental and Occupational Health
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