Highly sensitive detection of hexavalent chromium utilizing a sol-gel/carbon nanotube modified electrode

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• 作者：Samuel M. Rosolina ; Stefanie A. Bragg ; Ruizhuo Ouyang ; James Q. Chambers ; Zi-Ling Xue ; ^xue@utk.edu
• 关键词：Chromium detection ; Single-walled carbon nanotubes ; Glassy carbon electrode ; Sol-gel ; Thin film ; Iridescence
• 刊名：Journal of Electroanalytical Chemistry
• 出版年：2016
• 出版时间：15 November 2016
• 年：2016
• 卷：781
• 期：Complete
• 页码：120-125
• 全文大小：1127 K
• 卷排序：781

文摘

Cr(VI) detection: 5–300 μg L− 1 range; 0.8 μg L− 1 detection limit Sol-gel thin film electrodeposited over a carboxylated SWNT layer on GCE surface Sol-gel doped with 2-pyridinium to preconcentrate HCrO4− Lowering detection limit by three orders of magnitude through the use of SWNTs