Why 'the bigger the better' is not always the case when utilising microelectrode arrays: High density vs. low density arrays for the electroanalytical sensing of chromium(VI)

Analyst

Volumn 134, Issue 11, 2009, Pages 2301-2305

  Hood, Sebastian J ^a   Kampouris, Dimitrios K ^a   Kadara, Rashid O ^a   Jenkinson, Norman ^a   Del Campo, F Javier ^b   Muñoz, Francesc Xavier ^b   Banks, Craig E ^a  

^a MANCHESTER METROPOLITAN UNIVERSITY   (United Kingdom)

^b UNIVERSITAT AUTÒNOMA DE BARCELONA   (Spain)

Author keywords

[No Author keywords available]

Indexed keywords

CHROMIUM;

ARTICLE; DENSITY; DIFFUSION; MICROELECTRODE; MOLECULAR SENSOR; MOLECULAR SIZE; NANOARRAY; RADIUS; SENSITIVITY ANALYSIS;

EID: 72549102011     PISSN: 00032654     EISSN: 13645528     Source Type: Journal    
DOI: 10.1039/b911507b     Document Type: Article

References (28)

1. http://www.who.int/water-sanitation-health/dwq/chemicals/chromium.pdf
2. V. Gómez M. P. Callao Trends Anal. Chem. 2006 25 1006
3. J. O. Nriagu and E. Nieboer, Chromium in the Natural and Human Environment, Wiley, New York, 1988
4. M. Sperling X. Yin W. Bernhard Analyst 1992 117 629
5. A. M. O'Mahony M. D. Scanlon A. Berduque V. Beni D. W. M. Arrigan E. Faggi A. Bencini Electrochem. Commun. 2005 7 976
6. J.-u.-R. Memon S. Q. Memon M. I. Bhanger M. Y. Khuhawar J. Hazard. Mater. 2009 163 511
7. R. G. Compton and C. E. Banks, Understanding Voltammetry, World Scientific Ltd, Singapore, 2007
8. V. Beni D. W. M. Arrigan Curr. Anal. Chem. 2008 4 229
9. A. Berduque Y. H. Lanyon V. Beni G. Herzog Y. E. Watson K. Rodger F. Stam J. Alderman D. W. M. Arrigan Talanta 2007 71 1022
10. S. Fletcher M. D. Horne Electrochem. Commun. 1999 1 502
11. D. W. M. Arrigan Analyst 2004 129 1157
12. O. Ordeig F. J. del Campo F. X. Munoz C. E. Banks R. G. Compton Electroanalysis (N. Y.) 2007 19 1973
13. F. J. del Campo O. Ordeig N. Vigues N. Godino J. Mas F. X. Munoz Sens. Actuators, B 2007 126 515
14. E. Nebling T. Grunwald J. Albers P. Schafer R. Hintsche Anal. Chem. 2004 76 689
15. O. Ordeig C. E. Banks F. J. del Campo F. X. Munoz R. G. Compton Electroanalysis (N. Y.) 2006 18 573
16. A. Berduque G. Herzog Y. E. Watson D. W. M. Arrigan J. C. Moutet O. Reynes E. Saint-Aman Electroanalysis (N. Y.) 2005 17 392
17. K. M. Wassum V. M. Tolosa J. J. Wang E. Walker H. G. Monbouquette N. T. Madiment Sensors 2008 8 5023
18. X. Xu C. Liu J. Jia B. Liu X. Yang S. Dong Electroanalysis (N. Y.) 2008 20 797
19. Y. Chen C. Gou L. Lim S. Cheong Q. Zhang K. Tang J. Reboud Anal. Chem. 2008 80 1133
20. O. Ordeig C. E. Banks F. J. del Campo F. X. Munoz J. Davis R. G. Compton Electroanalysis (N. Y.) 2006 18 247
21. O. Ordeig C. E. Banks T. J. Davies J. del Campo F. X. Munoz R. G. Compton Analyst 2006 13 440
22. C. M. Welch O. Nekrassova R. G. Compton Talanta 2005 65 74
23. C. M. Brett and A. M. O. Brett, Electroanalysis, Oxford University Press, Oxford, 1998
24. M.-C. Tsai P.-Y. Chen Talanta 2008 76 533
25. J. Guo E. Lindner Anal. Chem. 2009 81 130
26. R. N. Adams, Electrochemistry at Solid Electrodes, Marcel Dekker Inc., New York, 1969
27. Note that non-active microelectrodes are usually situated around the outside of the array which is due to a failure in the fabrication process. As it is the interactions of diffusion zones that are key to the sensor performance, the low number of inactive discs does not affect our interpretation. However, in other cases where there are a large number of non-active microelectrodes on the array, this may become significant
28. F. Chevallier R. G. Compton Electroanalysis (N. Y.) 2006 18 2369 2374