Solid-phase extraction of sulfonylurea herbicides from water samples with single-walled carbon nanotubes disk
文献类型：期刊论文
| 作者 | Niu, Hongyun ; Shi, Yali ; Cai, Yaqi ; Wei, Fusheng ; Jiang, Guibin |
| 刊名 | MICROCHIMICA ACTA
 |
| 出版日期 | 2009-03 |
| 卷号 | 164期号:1页码:431-438 |
| 关键词 | Solid-phase extraction Single-walled carbon nanotubes disk Sulfonylurea herbicides Water sample |
| 中文摘要 | This study presents a new, easily made and practical solid-phase extraction disk, a single-walled carbon nanotubes (SWCNTs) disk. The properties of the disk were evaluated by extracting large volumes of aqueous solution (500-3,000 mL) spiked with trace levels of sulfonylurea herbicides, metsulfuron-methyl, chlorsulfuron, bensulfuron-methyl, pyrazosulfuron-ethyl, and chlorimuron-ethyl. The adsorption of analytes on the SWCNTs disk was more favorable at pH 3.0, and the adsorbed sulfonylurea herbicides could be eluted completely with acetonitrile (1% acetic acid) solvent. The disks were stacked to enhance their extraction ability to analytes. The triple layered SWCNTs disks system showed excellent extraction efficiency when the sample volume was up to 3,000 mL. A comparative study was conducted with a commercial C(18) disk and an activated carbon disk. The SWCNTs disks showed an adsorption capacity comparable to sulfonylurea herbicides to the C(18) disk and activated carbon disk, but the analytes retained on the activated carbon disk were hardly desorbed. Finally, the triple layered SWCNTs disks system was used to pretreat 1,000 mL of several environmental water samples spiked with the analytes, and satisfactory recoveries (79-102%) were obtained. Detection limits of 1.1-7.2 ng L(-1) for analytes were achieved under the optimized conditions. |
| WOS记录号 | WOS:000263381600026 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/21567]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Niu, Hongyun,Shi, Yali,Cai, Yaqi,et al. Solid-phase extraction of sulfonylurea herbicides from water samples with single-walled carbon nanotubes disk[J]. MICROCHIMICA ACTA,2009,164(1):431-438. |
| APA | Niu, Hongyun,Shi, Yali,Cai, Yaqi,Wei, Fusheng,&Jiang, Guibin.(2009).Solid-phase extraction of sulfonylurea herbicides from water samples with single-walled carbon nanotubes disk.MICROCHIMICA ACTA,164(1),431-438. |
| MLA | Niu, Hongyun,et al."Solid-phase extraction of sulfonylurea herbicides from water samples with single-walled carbon nanotubes disk".MICROCHIMICA ACTA 164.1(2009):431-438. |
入库方式： OAI收割
来源：生态环境研究中心
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