Page 13 - Analytical Electrochemistry 2d Ed - Jospeh Wang

xiv ABBREVIATIONS AND SYMBOLS

DME Dropping mercury electrode
DPV Differential pulse voltammetry

E Potential (V)
DE Pulse amplitude; step height
E Binding energy (in XPS)
B
E eq Equilibrium potential
E Standard electrode potential
E 1=2 Half wave potential
E p Peak potential
E pzc Potential of zero charge
EC Electrode process involving an electrochemical reaction followed by a
chemical step
ECL Electrochemiluminescence
EQCM Electrochemical quartz crystal microbalance
ESCA Electron spectroscopy for chemical analysis
EXAFS X-ray adsorption ®ne structure

F Faraday constant
FET Field-effect transistor
FIA Flow injection analysis
f Activity coef®cient; frequency
Df Frequency change (in EQCM)

DG Free energy
DG z Free energy of activation

HMDE Hanging mercury drop electrode

i Electric current
i c Charging current
i l Limiting current
i t Tunneling current
Di Current difference
IHP Inner Helmholtz plane
IRS Internal re¯ectance spectroscopy
ISE Ion-selective electrode
ISFET Ion-selective ®eld-effect transistor

J Flux

pot
k ij Potentiometric selectivity coef®cient
k Standard rate constant
K m Michaelis±Menten constant; mass transport coef®cient