Fabrication of a Multi-Walled Nanotube (MWNT) Ionic Liquid Electrode and Its Application for Sensing Phenolics in Red Wines
Abstract
:1. Introduction
2. Experimental
2.1. Reagents
2.2. Synthesis of the poly(GMA)-g-MWNT
2.3. Fabrication of the Enzyme Electrode Based on Carboxylic Acid-modified MWNT
2.4. Instrumentation
3. Results and Discussion
3.1. Fabrication and Characterization of MWNT Ion Liquid Electrode
3.2. Optimization of the Prepared MWNT Ion Liquid Electrode
3.3. Total Amounts of Phenolics in Commercial Red Wines
4. Conclusions
Acknowledgments
References and Notes
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Sample | N (%) | C (%) | H (%) | O (%) |
---|---|---|---|---|
Pure MWNT | 76.14 | 0.74 | 11.81 | |
poly(GMA)-g-MWNT | 66.78 | 4.80 | 22.25 | |
MWNT ionic liquid | 5.35 | 55.79 | 4.63 | 18.58 |
Commercial red wine (Korea) | Current density | Phenolics a) | Phenolics b) |
---|---|---|---|
Chateau Mani-dry (Korea) | 9.7×10−5 A | 383.5 mg/L | 20.33 mg/L |
Chateau Mani-sweet (Korea) | 1.2×10−4 A | 872.9 mg/L | 38.02 mg/L |
Chateau Mani-nouveau (Korea) | 2.1×10−4 A | 3087 mg/L | 39.01 mg/L |
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Kim, K.-I.; Kang, H.-Y.; Lee, J.-C.; Choi, S.-H. Fabrication of a Multi-Walled Nanotube (MWNT) Ionic Liquid Electrode and Its Application for Sensing Phenolics in Red Wines. Sensors 2009, 9, 6701-6714. https://doi.org/10.3390/s90906701
Kim K-I, Kang H-Y, Lee J-C, Choi S-H. Fabrication of a Multi-Walled Nanotube (MWNT) Ionic Liquid Electrode and Its Application for Sensing Phenolics in Red Wines. Sensors. 2009; 9(9):6701-6714. https://doi.org/10.3390/s90906701
Chicago/Turabian StyleKim, Kyo-Il, Hee-Young Kang, Jae-Chan Lee, and Seong-Ho Choi. 2009. "Fabrication of a Multi-Walled Nanotube (MWNT) Ionic Liquid Electrode and Its Application for Sensing Phenolics in Red Wines" Sensors 9, no. 9: 6701-6714. https://doi.org/10.3390/s90906701