Amperometric detection systems

FIGURE 3-27 Three-dimensional chromatogram for oxidizable biological compounds at a multichannel amperometric detection system, consisting of an array of 16 carbon-paste electrodes held at different potentials. AA = ascorbic acid NE = norepinephrine DOPAC = 3,4-dihydroxyphenylacetic acid 5-HIAA = 5-hydroxyindole-3-acetic acid DA = dopamine HVA = homovanillic acid. (Reproduced with permission from reference 68.)... 

Hoogvliet, J. C., Reijn, J. M., and van Bennekom, W. P., Multichannel amperometric detection system for liquid chromatography and flow inhection analysis, Anal. Chem., 63, 2418, 1991. 

Wang, J. and M. Pumera. Dual conductivity/amperometric detection system for microchip capillary electrophoresis. Anal. Chem. 74, 5919-5923 (2002). 

Zhang S, Sun W-l, Xian Y-z, Zhang W, Jin L, Yamamoto K, Tao S, Jin, J (1999) Multichannel amperometric detection system for liquid chromatography to assay the thiols in human whole blood using the platinum microelectrodes chemically modified by copper tetra aminophthalocyanine. Anal Chim Acta 399(3) 213-221... 

FIGURE 33-19 Photograph of a blood glucose monitor for in home use. The meter (a) contains the electronics and display. A droplet of blood is placed on a test strip (b). which is placed at the top of the meter. The test strip contains immobilized glucose oxidase and electrodes for the amperometric detection system. (Courtesy of Life-Scan. Inc., Milpitas. CA.)... 

FIGURE 20.11 Schematic representation of the end-column amperometric detection system (1) the outlet of the separation capillary was etched to 13 pm i.d., (2) Ag/AgCl reference electrode, (3) flame-etched carbon fiber electrode, (4) buffer reservoir, and (5) separation capillary, 770 nm i.d. (Reprinted from Woods, L. A., et l.. Electroanalysis, 17, 1192, 2005. With permission.)... 

A Simultaneous determination of AA and SO2 based on the oxidation of both analytes in a dual-channel amperometric detection system 8.5 30 1.0 Wines, fruit juices 2000 201... 

---