Study of current analytical strategies for the dual investigation of polycyclic aromatic hydrocarbons and benzene, toluene, ethylbenzene and xylene in apples - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Food Composition and Analysis Année : 2014

Study of current analytical strategies for the dual investigation of polycyclic aromatic hydrocarbons and benzene, toluene, ethylbenzene and xylene in apples

Résumé

This study aimed at developing a versatile strategy for the dual determination of polycyclic aromatic hydrocarbons (PAHs) and benzene, toluene, ethylbenzene and xylene (BTEX) in apples. For that, the headspace-solid-phase microextraction (HS-SPME) method was first optimized with the aim to extract all the target compounds. A carboxen/polydimethylsiloxane fibre associated with a duration of 45 min and a temperature of 60 C was the most suitable condition for the extraction of BTEX and low molecular weight PAHs. Combined to a functional gas chromatography-mass spectrometry (GC-MS) method, recovery above instrumental detection limits (>0.14 mu g) and high extraction reproducibility (relative standard deviation <15%) were obtained for every compound. Solid-phase extraction (SPE), ultrasound assisted extraction (UAE) and Soxhlet were then evaluated focusing on their ability to extract the four to six-ring PAHs. Associated to an accurate GC-MS method, UAE showed the best extraction recoveries (up to 1.96 pg out of 2 mu g), and a good linearity (R-2 > 0.95) and detection limit below 0.26 mu g were obtained for all these compounds. This study points out the real difficulty to find a single procedure for the dual investigation of volatile and non-volatile analytes in complex foodstuffs like apples
Fichier non déposé

Dates et versions

hal-01194717 , version 1 (07-09-2015)

Identifiants

Citer

Pauline Poinot, Fan Qin, Melanie Lemoine, Vanessa Yvon, Jerome Ledauphin, et al.. Study of current analytical strategies for the dual investigation of polycyclic aromatic hydrocarbons and benzene, toluene, ethylbenzene and xylene in apples. Journal of Food Composition and Analysis, 2014, 35 (2), pp.83-93. ⟨10.1016/j.jfca.2014.06.003⟩. ⟨hal-01194717⟩
75 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More