AbstractThis study aimed to develop a voltammetric sensor for the determination of bisphenol
A (BPA), uric acid (UA), dopamine (DA) and acetaminophen (ACT) using multiwalled
carbon nanotubes incorporated with zinc/aluminium layered double hydroxidequinmerac
(Sensor 1), zinc/aluminium layered double hydroxide-quinclorac (Sensor 2)
and zinc/aluminium layered double hydroxide-clopyralid (Sensor 3). The surface
morphological was determined using field emission scanning electron microscope. The
electrochemical properties were characterized by cyclic voltammetry, square wave
voltammetry and electrochemical impedance spectroscopy. Several experimental
variables of voltammetric analysis such as composition ratios, type of supporting
electrolyte, pH of the solution and square wave voltammetry parameters were
optimized. The effective surface area of electrodes was determined by
chronocoulometry. At the optimum conditions, Sensor 1 showed three linear ranges for
the single determination of BP.....