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| 多壁碳纳米管对微量苯二氮卓类药物的吸附性能研究 | |
| 引用本文： | 汪丽萍,赵海香,邱月明. 多壁碳纳米管对微量苯二氮卓类药物的吸附性能研究[J]. 分析化学, 2009, 37(1) |
| 作者姓名： | 汪丽萍 赵海香 邱月明 |
| 作者单位： | 1. 国家粮食局科学研究院,北京,100037 2. 河北北方学院,张家口,075131 3. 中国标准化研究院,北京,100088 |
| 基金项目： | 国家重大科技专项项目， |
| 摘 要： | 研究了静态吸附条件下多壁碳纳米管(MWCNTs)对地西泮、艾司唑仑、阿普唑仑和三唑仑 4种苯二氮卓类药物的吸附性能,10 min内能达到吸附平衡.MWCNTs对药物的吸附容量随药物浓度的增加而增加,最小初始浓度时MWCNTs对4种药物的静态吸附容量分别为7.95、7.88、7.99和7.73 mg/g,吸附容量较大.295、303和313 K温度下的吸附实验表明,吸附容量随温度的升高而减小,降低温度有利于药物的吸附.对不同温度下的吸附等温线采用Freundlich和Langmuir方程进行拟合,结果显示Langmuir方程具有更好的拟合效果.在动态吸附条件下穿透体积的测定显示MWCNTs对药物也具有大的吸附容量且萃取回收率高达90%以上. |
| 关 键 词： | 多壁碳纳米管 苯二氮卓 吸附 |
Adsorption Performance of Multi-walled Carbon Nanotubes to Trace Benzodiazepines |
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| WANG Li-Ping,ZHAO Hai-Xiang,QIU Yue-Ming. Adsorption Performance of Multi-walled Carbon Nanotubes to Trace Benzodiazepines[J]. Chinese Journal of Analytical Chemistry, 2009, 37(1) | |
| Authors: | WANG Li-Ping ZHAO Hai-Xiang QIU Yue-Ming |
| Affiliation: | The Academy of Science of the State Administration of Grain;Beijing 100037;Hebei North University;Zhangjiakou;075131;China National Institute of Standardization;Beijing 100088 |
| Abstract: | The adsorption performance of MWCNTs to four benzodiazepines including diazepam,estazolam,alprazolam and triazolam was examined.Four drugs can be adsorbed rapidly and quantitatively on MWCNTs in the static adsorption experiment,and the adsorption equilibrium was obtained within 10 min.The adsorptive capacities of MWCNTs increase with increasing concentration of these drugs.In original drugs concentration,the adsorptive capacities of MWCNTs to four drugs were greater.The adsorptive capacity was 7.95,7.88,7.9... |
| Keywords: | Multi-walled carbon nanotubes benzodiazepines adsorption |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |