A Smart and Portable Solution for Heavy Metals Concentration Measurements

This paper presents a measurement solution for heavy metals concentrations. The proposed solution can be installed in stand-alone environmental monitoring stations and can incorporate measurement units for other water quality parameters such as temperature, conductivity, salinity, pH, dissolved oxygen and turbidity. A fully-automated monitoring station based on a low-cost potentiostat unit is presented together with a set of components and devices that can be used to provide auto calibration capabilities. A special attention is dedicated to data interpolation based on ANN curve fitting techniques and the interpolation results are compared with the ones obtained with traditional LMS polynomial interpolation techniques.