We present a compact portable chip-based capillary electrophoresis system that employs capacitively coupled contactless conductivity detection (CD) operating at 4 MHz as an alternative detection method compared to the commonly used optical detection employing laser-induced fluorescence. The disposable chip for this system is fabricated out of PMMA using injection molding; the electrodes are scr...

This work presents a flexible miniaturized ion-selective sensor consisting of a solidcontact reference electrode (RE) and ion-selective electrodes (ISE) fabricated on the same foil. The flexible ion sensor was based on AgCl electrodes screen printed on polyethylene terephthalate foil. The RE was formed by casting a mixture of plasticized polyvinylchloride (PVC) and KCl on the AgCl electrode. Th...

A study of keracyanin chloride (KC) electrochemical behavior in an aqueous buffer solution using screen-printed carbon electrodes (SPCEs) and glassy (GCEs) was performed. Cyclic voltammetry (CV) square-wave (SWV) were used to analyze the response KC under studied conditions. clear redox wave observed for KC, primarily due oxidation catechol 3′,4′-dihydroxyl group its ring B, with a minor from h...