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| Determination of PAHs in Lycium seed oil by QuEChERS/GC-MS/MS |
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| KeyWord:Lycium seed oil PAHs QuEChERS GC-MS/MS |
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| Abstract: |
| A QuEChERS with gas chromatography-triple quadrupole mass spectrometry(GC-MS/MS) method was developed for the simultaneous determination of 16 PAHs in Lycium seed oil. The PAHs compounds were isolated from Lycium seed oil(0.5 g)by extracting twice with 3 mL acetonitrile, then purified with 200 mg PSA and 100 mg C18 packing powder. The purified liquid containing 16 PAHs were analyzed by GC-MS/MS. Under the optimal conditions, the separability of 16 PAHs was good, and the method had good linear relationship in the range of 1.0- 200 ng/mL. The recovery rate was 60.04%-119.00% with RSD 292%-13.03%. The detection limit and quantitative limit were in the rangs of 02-3.5 μg/kg and 0.7-11.5 μg/kg. The method had advantages of reliable data, simplicity, rapidness and high sensitivity, and it was suitable for the determination of PAHs in Lycium seed oil. |
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