Christos Kokkinos Anastasios Economou Ioannis Raptis Thanassis Speliotis, Disposable mercury-free cell-on-a-chip devices with integrated microfabricated electrodes for the determination of trace nickel(II) by adsorptive stripping voltammetry, Analytica Chimica Acta, (622), 111--118, 2008, ELSEVIER BV, 0003-2670