Extraction of ochratoxin A in red wine with dopamine-coated magnetic multi-walled carbon nanotubes
文献类型：期刊论文
| 作者 | Wan, H; Zhang, B; Bai, XL; Zhao, Y; Xiao, MW; Liao, X; Liao, X (reprint author), Chinese Acad Sci, Chengdu Inst Biol, Chengdu, Sichuan, Peoples R China. |
| 刊名 | JOURNAL OF SEPARATION SCIENCE
 |
| 出版日期 | 2017 |
| 卷号 | 40期号:20页码:4022-4031 |
| 关键词 | Magnetic Carbon Nanotubes Magnetic Solid-phase Extraction Ochratoxin a Polydopamine Red Wine |
| DOI | 10.1002/jssc.201700697 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | A new, rapid, green, and cost-effective magnetic solid-phase extraction of ochratoxin A from red wine samples was developed using polydopamine-coated magnetic multi-walled carbon nanotubes as the absorbent. The polydopamine-coated magnetic multi-walled carbon nanotubes were fabricated with magnetic multi-walled carbon nanotubes and dopamine by an in situ oxidative self-polymerization approach. Transmission electron microscopy, dynamic light scattering, X-ray photoelectron spectroscopy and vibrating sample magnetometry were used to characterize the absorbents. Ochratoxin A was quantified with high-performance liquid chromatography coupled with fluorescence detection, with excitation and emission wavelengths of 338 and 455 nm, respectively. The conditions affecting the magnetic solid-phase extraction procedure, such as pH, extraction solution, extraction time, absorbent amount, desorption solution and desorption time were investigated to obtain the optimal extraction conditions. Under the optimized conditions, the extraction recovery was 91.8-104.5% for ochratoxin A. A linear calibration curve was obtained in the range of 0.1-2.0 ng/mL. The limit of detection was 0.07 ng/mL, and the limit of quantitation was 0.21 ng/mL. The recoveries of ochratoxin A for spiked red wine sample ranged from 95.65 to 100.65% with relative standard deviation less than 8%. The polydopamine-coated magnetic multi-walled carbon nanotubes showed a high affinity toward ochratoxin A, allowing selective extraction and quantification of ochratoxin A from complex sample matrixes. |
| 学科主题 | Chemistry |
| 语种 | 英语 |
| 资助机构 | Financial support from the West Light Foundation of the Chinese Academy of Sciences is gratefully acknowledged. ; West Light Foundation of the Chinese Academy of Sciences ; Financial support from the West Light Foundation of the Chinese Academy of Sciences is gratefully acknowledged. ; West Light Foundation of the Chinese Academy of Sciences ; Financial support from the West Light Foundation of the Chinese Academy of Sciences is gratefully acknowledged. ; West Light Foundation of the Chinese Academy of Sciences ; Financial support from the West Light Foundation of the Chinese Academy of Sciences is gratefully acknowledged. ; West Light Foundation of the Chinese Academy of Sciences |
| 源URL | [http://210.75.237.14/handle/351003/29210]  |
| 专题 | 成都生物研究所_天然产物研究 |
| 通讯作者 | Liao, X (reprint author), Chinese Acad Sci, Chengdu Inst Biol, Chengdu, Sichuan, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Wan, H,Zhang, B,Bai, XL,et al. Extraction of ochratoxin A in red wine with dopamine-coated magnetic multi-walled carbon nanotubes[J]. JOURNAL OF SEPARATION SCIENCE,2017,40(20):4022-4031. |
| APA | Wan, H.,Zhang, B.,Bai, XL.,Zhao, Y.,Xiao, MW.,...&Liao, X .(2017).Extraction of ochratoxin A in red wine with dopamine-coated magnetic multi-walled carbon nanotubes.JOURNAL OF SEPARATION SCIENCE,40(20),4022-4031. |
| MLA | Wan, H,et al."Extraction of ochratoxin A in red wine with dopamine-coated magnetic multi-walled carbon nanotubes".JOURNAL OF SEPARATION SCIENCE 40.20(2017):4022-4031. |
入库方式： OAI收割
来源：成都生物研究所
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