Quantitative determination of fullerene (C-60) in soils by high performance liquid chromatography and accelerated solvent extraction technique

文献类型： 外文期刊

第一作者： Shareef, Ali

作者： Shareef, Ali;Kookana, Rai S.;Li, Guihua

作者机构：

关键词： carbon nanoparticles;environmental fate;fullerenes;nanotechnology;terrestrial ecosystems

期刊名称：ENVIRONMENTAL CHEMISTRY （ 影响因子：3.088； 五年影响因子：4.417 ）

ISSN： 1448-2517

年卷期： 2010 年 7 卷 3 期

页码：

收录情况： SCI

摘要： Fullerenes (e.g. C-60) are emerging as environmental contaminants due to their wide range of applications, such as in optics, electronics, cosmetics and biomedicine. Residue analysis is a crucial step in understanding the fate and effects of C-60 in the terrestrial environments. However, there is a lack of reliable quantitative analytical methods for extraction and analysis of C-60 in soils or sediments. We developed a method for determination of C-60 in soils using accelerated solvent extraction (ASE) followed by HPLC-UV detection. Separation of C-60 from soil matrix interferences was achieved by gradient elution using methanol-toluene mobile phase. Mean recoveries obtained from extraction efficiency tests using six contrasting soils spiked (wet and dry tests with freeze drying of wet and aged soils before ASE) at varying concentrations of C-60 ranged from 84 to 107%. The current method provides adequate sensitivity (limit of quantitation = 20 mu g kg(-1)), and can be used for quantitative determination of C-60 in soils and sediments (especially for environmental fate studies) without needing expensive HPLC-mass spectrometry.

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