Boron-doped diamond microdisc arrays: electrochemical characterisation and their use as a substrate for the production of microelectrode arrays of diverse metals (Ag, Au, Cu)via electrodeposition.
A novel boron-doped diamond (BDD) microelectrode array is characterised with electrochemical and atomic force microscopic techniques. The array consists of 40 micron-diameter sized BDD discs which are separated by 250 microns from their nearest neighbour in a hexagonal arrangement. The conducting discs can be electroplated to produce arrays of copper, silver or gold for analytical purposes in addition to operating as an array of BDD-microelectrodes. Proof-of-concept is shown for four separate examples; a gold plated array for arsenic detection, a copper plated array for nitrate analysis, a silver plated array for hydrogen peroxide monitoring and last, cathodic stripping voltammetry for lead at the bare BDD-array.
Simm
Andrew O
AO
Physical and Theoretical Chemistry Laboratory, University of Oxford, South Parks Road, Oxford, UKOX1 3QZ.
Banks
Craig E
CE
Ward-Jones
Sarah
S
Davies
Trevor J
TJ
Lawrence
Nathan S
NS
Jones
Timothy G J
TG
Jiang
Li
L
Compton
Richard G
RG
D001151:Arsenic / Q000032:analysis; D001895:Boron; D002244:Carbon; D003300:Copper; D004595:Electroplating; D006046:Gold; D006861:Hydrogen Peroxide / Q000032:analysis; D007854:Lead / Q000032:analysis; D008670:Metals; D008832:Microchemistry / Q000379:methods*; D008839:Microelectrodes; D009566:Nitrates / Q000032:analysis; D012834:Silver
D008670:Metals; D009566:Nitrates; D007854:Lead; D012834:Silver; D002244:Carbon; D006046:Gold; D003300:Copper; D006861:Hydrogen Peroxide; D001151:Arsenic; D001895:Boron