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An amperometric detector with a tubular electrode deposited on the capillary for capillary liquid chromatography |
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| Institution: | a Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun Jilin 130022 China b UNESCO Laboratory of Environmental Electrochemistry, Department of Analytical Chemistry, Charles University, Albertov 2030 128 40 Prague 2 Czech Republic |
| Abstract: | A procedure is described for the preparation of a tubular electrode by chemical deposition of platinum at the end of a fused-silica capillary. The properties of the electrode were tested under liquid chromatographic conditions, demonstrating that both the static and the dynamic behaviour of the detection system satisfy the requirements of capillary chromatographic separations and compare well with a wall-jet amperometric system and with UV photometric detection. The detection system described is easy to prepare and does not require any time-consuming positioning of the electrode system as it is integrated into the separation part of the apparatus. |
| Keywords: | Amperometry Tubular electrode Capillary liquid chromatography |
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