| 论文标题 |
Adenine-coated magnetic multiwalled carbon nanotubes for the selective extraction of aristolochic acids based on multiple interactions |
| 作者 |
Hua Shu, Guoning Chen, Lu Wang, Xia Cui, Qun Wang, Zhimin Luo*, Qiang Fu* |
| 发表/完成日期 |
2020-06-30 |
| 期刊名称 |
Journal of Chromatography A |
| 期卷 |
1627 |
| 相关文章 |
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| 论文简介 |
A method is described for the functionalization of magnetic carbon nanotubes to recognize aristolochic
acid Ⅰ and Ⅱ . 3-Glycidyloxypropyltrimethoxysilane was used as a coupling agent to immobilize adenine on
a solid support. The morphology and structure of adenine-coated magnetic carbon nanotubes was inves-
tigated using transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray diffrac-
tion (XRD) and a vibrating sample magnetometer (VSM). The adsorption performance of the adenine-
coated magnetic carbon nanotubes was evaluated via adsorption isotherms, the kinetics and selectivity
tests. The adsorption capacity of the adenine-functionalized sorbent for aristolochic acid Ⅰ was determined
to be 24.5 μ g mg −1
. By combining magnetic solid phase extraction with HPLC detection, a method was
developed to enrich and detect aristolochic acids used in traditional Chinese medicine. A satisfactory re-
covery (92.7 - 97.5% for aristolochic acid Ⅰ and 92.6 - 99.4% for aristolochic acid Ⅱ ) and an acceptable
relative standard deviation ( < 4.0%) were obtained. |
(创新港)
