| Magnetic graphene solid-phase extraction for the determination of carbamate pesticides in tomatoes coupled with high performance liquid chromatography | |
| Department | 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 |
Li N(李娜)1,2; Chen J(陈娟)2 ; Shi YP(师彦平)2; Chen J(陈娟); Shi YP(师彦平)
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| 2015 | |
| Source Publication | Talanta
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| ISSN | 0039-9140 |
| Volume | 141Pages:212-219 |
| Abstract | Graphene-based magnetic nanoparticles, comprising zero-valent iron, iron oxide–oxyhydroxide and graphene, were prepared through a simple one-step synthesis method, and subsequently applied to magnetic solid-phase extraction for the determination of trace carbamate pesticides in tomatoes coupled with high performance liquid chromatography. The properties of the nanocomposites were confirmed by using Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and vibrating sample magnetometer. The components within the nanocomposites endowed the material with high extraction performance and manipulative convenience. Compared with reduced graphene oxide, the as-prepared G-MNPs showed the better extraction efficiencies for the carbamate pesticides thanks to the contribution of the iron-containing magnetic nanoparticles to the adsorption capacity of the nanocomposites. Various experimental parameters affecting the extraction efficiency had been investigated in detail. Under the optimal conditions, the method provided high enrichment factors ranging from 364 to 434, good linearities ranging from 5 to 200 ng g−1 for metolcarb, baygon and methiocarb and 10 to 200 ng g−1 for carbofuran and isoprocarb, low limits of detection ranging from 0.58 to 2.06 ng g−1, and satisfactory spiked recoveries (between 90.34% and 101.98% with the relative standard deviation values from 1.21% to 5.93%). It was confirmed that this novel method was an efficient pretreatment and enrichment procedure and could be successfully applied for extraction and determination of trace carbamate pesticides in complex matrices. |
| Keyword | Graphene-based Magnetic Nanoparticles Iron-containing Magnetic Nanoparticles Magnetic Solid-phase Extraction Carbamate Pesticides High Performance Liquid Chromatography |
| Subject Area | 分析化学与药物化学 |
| DOI | 10.1016/j.talanta.2015.04.018 |
| Funding Organization | the National Natural Science Foundation of China (Nos. 21375136;21105106);the Scholar Program of West Light Project, Chinese Academy of Sciences |
| Indexed By | SCI |
| If | 4.035 |
| Language | 英语 |
| Funding Project | 药物化学成分研究组 |
| compositor | 第二作者单位 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/18317 |
| 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 | Chen J(陈娟); Shi YP(师彦平) |
| Affiliation | 1.University of Chinese Academy of Sciences, Beijing 100039, PR China 2.Key Laboratory of Chemistry of Northwestern Plant Resources of the CAS and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China |
| Recommended Citation GB/T 7714 | Li N,Chen J,Shi YP,et al. Magnetic graphene solid-phase extraction for the determination of carbamate pesticides in tomatoes coupled with high performance liquid chromatography[J]. Talanta,2015,141:212-219. |
| APA | Li N,Chen J,Shi YP,陈娟,&师彦平.(2015).Magnetic graphene solid-phase extraction for the determination of carbamate pesticides in tomatoes coupled with high performance liquid chromatography.Talanta,141,212-219. |
| MLA | Li N,et al."Magnetic graphene solid-phase extraction for the determination of carbamate pesticides in tomatoes coupled with high performance liquid chromatography".Talanta 141(2015):212-219. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 2015212-219.pdf（1778KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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