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Quantitative Analysis by Gas Chromatography-Mass Spectrometry and Migration Characteristics of Phthalates and Adipates in Edible Oils

Cai Ya

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Abstract

In this study, phthalates and adipates in plastic-packaged edible oils were analyzed by gas chromatography-mass spectrometry in the selected ion monitoring mode(GC-MS-SIM) following ultrasonic-assisted organic solvent extraction, and the migration of phthalates and adipates was studied quantitatively at different temperatures. The results showed that under the optimized experimental conditions, the recoveries and precision of 21 phthalate acid esters(PAEs) and adipate acid esters(AEs) were in the ranges of 82.74%–111.01% and 2.56%–6.01%, respectively, and the limits of detection(LOD) were in the range of 0.28–14.25 μg/L. Commercial corn oil was detected to contain mainly dimethyl phthalate(DMP), dibutyl phthalate(DBP), bis-(2-ethylhexyl) phthalate(DEHP) and bis-(2-ethylhexyl) adipate(DEHA) due to the migration from the packaging material, and the amount of migration was increased gradually over time at different temperatures.

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What this paper is about

In this study, phthalates and adipates in plastic-packaged edible oils were analyzed by gas chromatography-mass spectrometry in the selected ion monitoring mode(GC-MS-SIM) following ultrasonic-assisted organic solvent extraction, and the migration of phthalates and adipates was studied quantitatively at different temperatures. The results showed that under the optimized experimental conditions, the recoveries and precision of 21 phthalate acid esters(PAEs) and adipate acid esters(AEs) were in the ranges of 82.74%–111.01% and 2.56%–6.01%, respectively, and the limits of detection(LOD) were in the range of 0.28–14.25 μg/L. Commercial corn oil was detected to contain mainly dimethyl phthalate(DMP), dibutyl phthalate(DBP), bis-(2-ethylhexyl) phthalate(DEHP) and bis-(2-ethylhexyl) adipate(DEHA) due to the migration from the packaging material, and the amount of migration was increased gradually over time at different temperatures.

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Available abstract

In this study, phthalates and adipates in plastic-packaged edible oils were analyzed by gas chromatography-mass spectrometry in the selected ion monitoring mode(GC-MS-SIM) following ultrasonic-assisted organic solvent extraction, and the migration of phthalates and adipates was studied quantitatively at different temperatures. The results showed that under the optimized experimental conditions, the recoveries and precision of 21 phthalate acid esters(PAEs) and adipate acid esters(AEs) were in the ranges of 82.74%–111.01% and 2.56%–6.01%, respectively, and the limits of detection(LOD) were in the range of 0.28–14.25 μg/L. Commercial corn oil was detected to contain mainly dimethyl phthalate(DMP), dibutyl phthalate(DBP), bis-(2-ethylhexyl) phthalate(DEHP) and bis-(2-ethylhexyl) adipate(DEHA) due to the migration from the packaging material, and the amount of migration was increased gradually over time at different temperatures.

Key concepts: Adipate, Phthalate, Dibutyl phthalate, Chemistry, Gas chromatography–mass spectrometry, Chromatography, Phthalic acid, Mass spectrometry

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Quantitative Analysis by Gas Chromatography-Mass Spectrometry and Migration Characteristics of Phthalates and Adipates in Edible Oils — Research Paper | ScholarLens