TY - JOUR
T1 - A comparison of different types of gold-carbon composite electrode for detection of arsenic(III)
AU - Simm, AO
AU - Banks, CE
AU - Wilkins, SJ
AU - Karousos, NG
AU - Davis, J
AU - Compton, RG
PY - 2005/2
Y1 - 2005/2
N2 - A study has been conducted using abrasively modified basal and edge-plane graphite, carbon-paste, and carbon-epoxy electrodes to create gold-carbon composite electrodes. Using either nano or micro-sized gold particles their suitability for use in detecting arsenic(III) is assessed. It was found that gold arrays prepared from micron-sized particles gave the best performance for arsenic detection. In particular micron arrays produced in carbon-paste electrodes with an easily renewable surface work well for detection of arsenic, producing a detection limit of 5(+/-2)x10(-9) mol L-1, with a high sensitivity of 10(+/-0.1) A mol(-1) L.
AB - A study has been conducted using abrasively modified basal and edge-plane graphite, carbon-paste, and carbon-epoxy electrodes to create gold-carbon composite electrodes. Using either nano or micro-sized gold particles their suitability for use in detecting arsenic(III) is assessed. It was found that gold arrays prepared from micron-sized particles gave the best performance for arsenic detection. In particular micron arrays produced in carbon-paste electrodes with an easily renewable surface work well for detection of arsenic, producing a detection limit of 5(+/-2)x10(-9) mol L-1, with a high sensitivity of 10(+/-0.1) A mol(-1) L.
U2 - 10.1007/s00216-004-2960-z
DO - 10.1007/s00216-004-2960-z
M3 - Article
SN - 1618-2650
VL - 381
SP - 979
EP - 985
JO - Analytical and Bioanalytical Chemistry
JF - Analytical and Bioanalytical Chemistry
IS - 4
ER -
