Determination of Polycyclic Aromatic Hydrocarbons(PAHs) in Plant Leaf Samples by Silica Gel Column and Gel Column Purification/Gas Chromatography-Mass Spectrometry
Determination of Polycyclic Aromatic Hydrocarbons(PAHs) in Plant Leaf Samples by Silica Gel Column and Gel Column Purification/Gas Chromatography-Mass Spectrometry[J]. 2016,35(9):1185-1190.
Determination of Polycyclic Aromatic Hydrocarbons(PAHs) in Plant Leaf Samples by Silica Gel Column and Gel Column Purification/Gas Chromatography-Mass Spectrometry[J]. 2016,35(9):1185-1190.DOI:
A method was developed for the analysis of polycyclic aromatic hydrocarbons(PAHs) in plant leaves by gas chromatography-mass spectrometry(GC-MS) based on silica gel column and gel permeation chromatography(GPC) purification.The target analytes in leaf samples were extracted with dichloromethane-hexane(1∶1,by volume) solution,purified with silica gel column and GPC column,analyzed by GC-MS,and then quantified by the internal standard method.The average recoveries of 15 PAHs were in the range of 82.2%-130% with relative standard deviations(RSD) not more than 11%.The detection limit(LOD) of this method varied from 0.025 1 ng?g-1 to 5.80 ng?g-1.This method could effectively remove the pigment and oil in the plant leaves,suitable for the trace analysis of PAHs in leaf samples,and providing a technical support for the determination of content of PAHs in the plant tissues.
关键词
索氏提取硅胶柱凝胶柱多环芳烃气相色谱-质谱联用(GC-MS)植物
Keywords
soxhlet extractionsilica gel columngel permeation chromatography(GPC)polycyclic aromatic hydrocarbons(PAHs)gas chromatography-mass spectrometry(GC-MS)plant