A new strategy based on cholesterol-functionalized iron oxide magnetic nanoparticles for determination of polycyclic aromatic hydrocarbons by high-performance liquid chromatography with cholesterol column |
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Authors: | Zhihong Yan Jinbin Yuan Genhua Zhu Ying Zou Chunyan Chen Shaolei Yang Shouzhuo Yao |
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Institution: | 1. State Key Laboratory of Chemo/Biosensing & Chemometrics, College of Chemistry & Chemical Engineering, Hunan University, Changsha 410082, China;2. Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China |
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Abstract: | This study reported for the first time the use of cholesterol-functionalized magnetic nanoparticles (Fe3O4@SiO2@Chol) for the determination of polycyclic aromatic hydrocarbons (PAHs) in traditional Chinese medicine samples (TCMs) by high performance liquid chromatography (HPLC) coupled with fluorescence detection. The method was efficient, environmentally friendly, and fast. The solvent consumption of the proposed column is only half of the conventional column but with higher efficiency. Influencing factors, including sorbent amount, desorption solvent, sample volume and extraction time, were investigated in detail. Under the optimum conditions, good linearity (R2 > 0.991) was obtained over the range of 5–400 ng g−1, with limits of detection (LOD) 0.75, 0.50, 1.0, 0.56, 0.60, 0.84 and 0.80 ng g−1 for anthracene, fluoranthene, pyrene, chrysene, benzoa]anthracene, benzo(b)fluoranthene and benzo(k)fluoranthene, respectively. |
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Keywords: | Cholesterol-functionalized magnetic nanoparticles Cholesterol column Polycyclic aromatic hydrocarbons Traditional Chinese medicine samples |
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