A porous-jet flow-through electrode.
An electrochemical flow detector, based on a jet of solution directed at a thin porous carbon electrode, is described, along with its electrochemical characteristics and analytical applications. The electrode has a volume of 19 mul and surface area of 1.26 cm(2). The detector exhibits better sensitivity and detectability than a wall-jet detector. Dopamine and ferrocyanide were used as test systems to give detection limits at nanomolar concentration levels. Applications indicated include continuous-flow analysis (utilizing stopped-flow voltammetry) and flow-injection analysis.
Wang
J
J
Department of Chemistry, New Mexico State University, Las Cruces, NM 88003, U.S.A.
Dewald
H D
HD