TY - JOUR N2 - This paper presents a voltammetric segmented voltage sweep mode that can be used to identify and measure heavy metals' concentrations. The proposed sweep mode covers a set of voltage ranges that are centered around the redox potentials of the metals that are under analysis. The heavy metal measurement system can take advantage of the historical database of measurements to identify the metals with higher concentrations in a given geographical area, and perform a segmented sweep around predefined voltage ranges or, alternatively, the system can perform a fast linear voltage sweep to identify the voltammetric current peaks and then perform a segmented voltage sweep around the set of voltages that are associated with the voltammetric current peaks. The paper also includes the presentation of two auto-calibration modes that can be used to improve system's reliability and proposes the usage of a Gaussian curve fitting of voltammetric data to identify heavy metals and to evaluate their concentrations. Several simulation and experimental results, that validate the theoretical expectations, are also presented in the paper. L1 - http://www.journals.pan.pl/Content/89934/PDF/Journal10178-VolumeXIX%20Issue2_18paper.pdf L2 - http://www.journals.pan.pl/Content/89934 PY - 2012 IS - No 2 EP - 394 DO - 10.2478/v10178-012-0033-8 KW - heavy metals measurement KW - electrochemical analysis KW - voltammetry KW - auto-calibration and curve fitting A1 - Pereira, José A1 - Postolache, Octavian A1 - Girão, Pedro PB - Polish Academy of Sciences Committee on Metrology and Scientific Instrumentation DA - 2012 T1 - Using A Segmented Voltage Sweep Mode and A Gaussian Curve Fitting Method to Improve Heavy Metal Measurement System Performance SP - 381 UR - http://www.journals.pan.pl/dlibra/publication/edition/89934 T2 - Metrology and Measurement Systems ER -