Most electrochemical sensing requires affordable, portable and easy-to-use devices for use in point-of-care testing resource-limited settings. This work presents the design evaluates analytical performance of a near-field communication (NFC) potentiostat, flat card-sized device containing microchip electrical analysis an NFC antenna smartphone connection. The interface is wireless connection be...

We report a simple and inexpensive electrochemical assay using a custom built hand-held potentiostat for the identification of explosives. The assay is based on a wipe test and is specifically designed for use in the field. The prototype instrument designed to run the assay is capable of performing time-resolved electrochemical measurements including cyclic square wave voltammetry using an embe...

• A portable procedure for determination of mercury and methylmercury is proposed. Anodic stripping voltammetry using a solid gold electrode adopted. Home-made cartridges containing new modified resin are Comparison between direct analyser made. measurement speciation inorganic (Hg IN ) (CH 3 Hg) was developed. sample pretreatment optimized to determine total content. home-made sorbent (CYXAD, ...