引用本文:
Ruo Zhong WANG, Lang Tao XIAO, Ming Hui YANG, Jun Hui DING, Feng Li QU, Guo Li SHEN. Amperometric Determination of Indole-3-acetic Acid Based on Platinum Nanowires and Carbon Nanotubes[J]. Chinese Chemical Letters,
2006, 17(12): 1585-1588.
Citation: Ruo Zhong WANG, Lang Tao XIAO, Ming Hui YANG, Jun Hui DING, Feng Li QU, Guo Li SHEN. Amperometric Determination of Indole-3-acetic Acid Based on Platinum Nanowires and Carbon Nanotubes[J]. Chinese Chemical Letters, 2006, 17(12): 1585-1588.
Citation: Ruo Zhong WANG, Lang Tao XIAO, Ming Hui YANG, Jun Hui DING, Feng Li QU, Guo Li SHEN. Amperometric Determination of Indole-3-acetic Acid Based on Platinum Nanowires and Carbon Nanotubes[J]. Chinese Chemical Letters, 2006, 17(12): 1585-1588.
Amperometric Determination of Indole-3-acetic Acid Based on Platinum Nanowires and Carbon Nanotubes
摘要:
Platinum nanowire (PtNW) can be grown by electrodeposition in polycarbonate membrane, with the average diameter of the nanowires about 250 nm. The PtNW and multiwalled carbon nanotubes (CNT) are then dispersed into chitosan (CHIT) solution. The resulting PtNW-CNT-CHIT material brings new capabilities for electrochemical devices by using the synergistic action of the electrocatalytic activity of PtNW and CNT. By dropping the PtNW-CNT-CHIT film onto the glassy carbon (GC) electrode surface, and after evaporationan amperometric sensor for the determination of indole-3-acetic acid (IAA) was developed. The oxidation current of IAA increased significantly at the PtNW-CNT-CHIT film coated GC electrode, in contrast to that at the CNT-CHIT modified GC. The linear response of the sensor is from 50ng/ml to 50 μg/ml with a detection limit of 25 ng/mL.
English
Amperometric Determination of Indole-3-acetic Acid Based on Platinum Nanowires and Carbon Nanotubes
Abstract:
Platinum nanowire (PtNW) can be grown by electrodeposition in polycarbonate membrane, with the average diameter of the nanowires about 250 nm. The PtNW and multiwalled carbon nanotubes (CNT) are then dispersed into chitosan (CHIT) solution. The resulting PtNW-CNT-CHIT material brings new capabilities for electrochemical devices by using the synergistic action of the electrocatalytic activity of PtNW and CNT. By dropping the PtNW-CNT-CHIT film onto the glassy carbon (GC) electrode surface, and after evaporationan amperometric sensor for the determination of indole-3-acetic acid (IAA) was developed. The oxidation current of IAA increased significantly at the PtNW-CNT-CHIT film coated GC electrode, in contrast to that at the CNT-CHIT modified GC. The linear response of the sensor is from 50ng/ml to 50 μg/ml with a detection limit of 25 ng/mL.
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Key words:
- Chitosan
- / platinum nanowire
- / glassy carbon
- / indole-3-acetic acid
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