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- W2359230818 abstract "An effective method was established for the simultaneous determination of 18 banned polycyclic aromatic hydrocarbons( PAHs) in paper packaging materials contacting with foodstuffs by gas chromatography- mass spectrometry / selected ion monitor technique( GC / MS- SIM) coupled with microwave assisted extraction( MAE). PAHs in samples were extracted by MAE at 90 ℃ using dichloromethane- hexane(1∶1) as extraction solvent. The extract was firstly extracted with dimethyl sulfoxide,then reversely extracted with cyclohexane,followed by purification of silica solid phase extraction column. The analysis of targeted compounds was performed by GC- MS / SIM with the external standard method. The calibration curves were linear in the certain concentration with correlation coefficients more than 0. 997. The detection limits varied from 0. 1 μg / kg to 1. 0 μg / kg. The average spiked recoveries ranged from 56. 3% to 95. 4% with relative standard deviations( RSDs) all less than 7%. The proposed method was simple,rapid,sensitive and accurate,and was suitable for the analysis of PAHs in paper packaging materials contacting with foodstuffs." @default.
- W2359230818 created "2016-06-24" @default.
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- W2359230818 date "2013-01-01" @default.
- W2359230818 modified "2023-09-23" @default.
- W2359230818 title "Simultaneous Determination of 18 Polycyclic Aromatic Hydrocarbons in Paper Packaging Materials Contacting with Foodstuffs Using Gas Chromatography-Mass Spectrometry / Selected Ion Monitoring Technique Coupled with Microwave Assisted Extraction" @default.
- W2359230818 hasPublicationYear "2013" @default.
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