从具有天然有机质结构保存的沉积物中选择性提取多环芳烃。
Selective extraction of PAHs from a sediment with structural preservation of Natural Organic Matter.
机构信息
Laboratoire des PROcessus de Transferts et d'Echanges dans l'Environnement (PROTEE), Université de Toulon, BP 20132, 83957 La Garde Cedex, France.
Institut National de l'Environnement Industriel et des Risques (INERIS), ARDEVIE, Domaine du Petit Arbois, BP 33, 13545 Aix-en-Provence Cedex 04, France.
出版信息
Chemosphere. 2014 Jul;107:476-479. doi: 10.1016/j.chemosphere.2013.12.055. Epub 2014 Jan 13.
Selective extraction of Polycyclic Aromatic Hydrocarbons (PAH) without structural modification of the Natural Organic Matter (NOM) from a heavily contaminated sediment was investigated using various solvents mixtures. Structural modification of the NOM was monitored after extraction using 3D-fluorescence spectroscopy. Better results were obtained with a 15-h PAH extraction under reflux with a dichloromethane/cyclohexane 20/80 mixture. The experimental procedure was validated with NOM standard materials before to be applied on natural sediments. It could be applied to any environmental solid sample such as sediments and soils.
使用各种溶剂混合物，研究了从受严重污染的沉积物中选择性提取多环芳烃（PAH）而不改变天然有机物（NOM）结构的方法。使用三维荧光光谱法监测提取后 NOM 的结构变化。用二氯甲烷/环己烷 20/80 混合物在回流下进行 15 小时的 PAH 提取，可获得更好的结果。在应用于天然沉积物之前，先用 NOM 标准物质对实验过程进行了验证。它可以应用于任何环境固体样品，如沉积物和土壤。
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