Preparation of a chitosan-coated C-18-functionalized magnetite nanoparticle sorbent for extraction of phthalate ester compounds from environmental water samples
文献类型：期刊论文
| 作者 | Zhang, Xiao Le; Niu, Hong Yun; Zhang, Sheng Xiao; Cai, Ya Qi |
| 刊名 | ANALYTICAL AND BIOANALYTICAL CHEMISTRY
 |
| 出版日期 | 2010-05 |
| 卷号 | 397期号:2页码:791-798 |
| 关键词 | Chitosan-coated C18-functionalized magnetite nanoparticles Solid-phase extraction Phthalate esters |
| 中文摘要 | Novel superparamagnetic chitosan-coated C-18-functionalized magnetite nanoparticles (MNPs) were successfully synthesized and applied as an effective sorbent for the preconcentration of several typical phthalate ester compounds from environmental water samples. The MNPs were 20 nm in diameter and had a high magnetic saturation value (52 emu g(-1)), which endowed the sorbent with a large surface area and the convenience of isolation from water samples. Phthalate esters could be extracted by the interior octadecyl groups through hydrophobic interaction. The hydrophilic porous chitosan polymer coating promoted the dispersion of MNPs in water samples, and improved the anti-interference ability of the sorbent without influencing the adsorption of analytes. The main factors affecting the adsorption of phthalate esters, including the pH of the solution, humic acid, sample loading volume, adsorption time, and desorption conditions, were investigated and optimized. Under the conditions selected (pH 11, adsorption time 20 min, elution with 10 mL of acetonitrile, and concentration to 0.5 mL), concentration factors of 1,000 were achieved by extracting 500 mL of several environmental water samples with 0.1 g of MNP sorbent. The method detection limits obtained for di-n-propyl phthalate, di-n-butyl phthalate, dicyclohexyl phthalate, and di-n-octyl phthalate were 12.3, 18.7, 36.4, and 15.6 ng L-1, respectively. The recoveries of spiked samples ranged from 60 to 100%, with a low relative standard deviation (1-8%), which indicated good method precision. |
| 公开日期 | 2015-08-05 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/21126]  |
| 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 | Zhang, Xiao Le,Niu, Hong Yun,Zhang, Sheng Xiao,et al. Preparation of a chitosan-coated C-18-functionalized magnetite nanoparticle sorbent for extraction of phthalate ester compounds from environmental water samples[J]. ANALYTICAL AND BIOANALYTICAL CHEMISTRY,2010,397(2):791-798. |
| APA | Zhang, Xiao Le,Niu, Hong Yun,Zhang, Sheng Xiao,&Cai, Ya Qi.(2010).Preparation of a chitosan-coated C-18-functionalized magnetite nanoparticle sorbent for extraction of phthalate ester compounds from environmental water samples.ANALYTICAL AND BIOANALYTICAL CHEMISTRY,397(2),791-798. |
| MLA | Zhang, Xiao Le,et al."Preparation of a chitosan-coated C-18-functionalized magnetite nanoparticle sorbent for extraction of phthalate ester compounds from environmental water samples".ANALYTICAL AND BIOANALYTICAL CHEMISTRY 397.2(2010):791-798. |
入库方式： OAI收割
来源：生态环境研究中心
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