| Application of SiO2 hollow fibers for sorptive microextraction and gas chromatography-mass spectrometry determination of organochlorine pesticides in herbal matrices | |
| Department | 甘肃省天然药物重点实验室 |
Li J(李佳); Zhang HF(张洪飞); Shi YP(师彦平)
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| 2010 | |
| Source Publication | Anal. Bioanal. Chem.
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| ISSN | 1618-2642 |
| Volume | 398Pages:1501-1508 |
| Abstract | A method involving simultaneous extraction and sample clean-up procedure: hollow fiber sorptive microextraction, coupled with gas chromatography–mass spectrometric detection for quantification of seven organochlorine pesticides in Radix et Rhizoma Rhei is described. SiO2 hollow fiber with porous structure was synthesized for the first time. The internal diameter of SiO2 hollow fiber is 380 μm and average wall thickness is 100 μm. Aggregated SiO2 particles deposited on the surface of the hollow fiber in a regular array lead to porous structure. SiO2 hollow fiber was applied to the determination of organochlorine pesticides in Radix et Rhizoma Rhei to avoid sample clean-up and minimize the matrix effects. Extraction solvent, extraction temperature and equilibration time were optimized. Fiber to fiber repeatability over the concentration ranges were less than 10%. Recoveries were satisfactory (between 63% and 115%) for most of organochlorine pesticides at spiking levels. Furthermore, the proposed method was also applied to determine seven organochlorine pesticides in 43 commercial Radix et Rhizoma Rhei samples, in which the selected pesticides were found in eight samples. The results have been further confirmed by solvent extraction methods according to China Pharmacopoeia (2005). |
| Keyword | Organochlorine Pesticides Sio2 Hollow Fiber Hollow Fiber Sorptive Microextraction Radix Et Rhizoma Rhei Gas Chromatography–mass Spectrometry |
| Subject Area | 分析化学与药物化学 |
| Funding Organization | the National Natural Science Foundation of China (No. 20875095);National Key Technology Research and Development Program of China (No. 2007BAI37B05) |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 药物化学成分研究组 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/1195 |
| Collection | 中科院西北特色植物资源化学重点实验室/甘肃省天然药物重点实验室 |
| Corresponding Author | Shi YP(师彦平) |
| Recommended Citation GB/T 7714 | Li J,Zhang HF,Shi YP. Application of SiO2 hollow fibers for sorptive microextraction and gas chromatography-mass spectrometry determination of organochlorine pesticides in herbal matrices[J]. Anal. Bioanal. Chem.,2010,398:1501-1508. |
| APA | 李佳,张洪飞,&师彦平.(2010).Application of SiO2 hollow fibers for sorptive microextraction and gas chromatography-mass spectrometry determination of organochlorine pesticides in herbal matrices.Anal. Bioanal. Chem.,398,1501-1508. |
| MLA | 李佳,et al."Application of SiO2 hollow fibers for sorptive microextraction and gas chromatography-mass spectrometry determination of organochlorine pesticides in herbal matrices".Anal. Bioanal. Chem. 398(2010):1501-1508. |
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