期刊
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
卷 16, 期 6, 页码 6185-6192出版社
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/jnn.2016.11645
关键词
Fe Doped Hydroxyapatite; CNTs; Composites; Electrochemical Sensor; L-Dopa
类别
资金
- University Grants Commission (UGC), India [F.15-1/2011-12/PDFWM-2011-12-OB-TAM-2867 (SA-II)]
- CSIR [03 (1203)/12/EMR-II]
A novel amperometric sensor based on iron doped hydroxyapatite (Fe-HA) and multiwalled carbon nanotubes (CNT) composite immobilized on a glassy carbon electrode (GCE) has been fabricated. The hybrid composite made of Fe-HA nanoparticles and CNT promotes electron transfer kinetics between the analyte levodopa (L-dopa) and the modified GC electrode. Under optimum conditions, the fabricated sensor gave a linear response range of 1.0x10(-7)-1.1x10(-6) M with the detection limit as low as 62 nM. The Fe-HA/CNT modified electrode showed good selectivity towards the determination of L-dopa in the presence of ascorbic acid (AA), uric acid (UA) and other common interferents. The sensor displays a high sensitivity, good reproducibility and long-term stability and it was successfully applied for the detection of L-dopa in pharmaceutical and medicinal plant samples.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据