Assay of Trace Copper Ion in Water Resources Using a Photo-sensing Diode Circuit

Background In this study, trace copper plays an important role in plant growth and is a biological component of various enzymes involved in both photosynthesis and plant respiration. Objective Electrochemical voltammetric bioassay of trace copper ion was detected using photo-sensing diode circuits (PSD) with working sensors for ppb levels trace detection in agricultural water by stripping and cyclic voltammetry. Results Optimum voltammetric conditions were examined. The system used was simple and utilized inexpensive circuits of our fabricated systems; however, a low detection limit was attained at 40.0 ugL(-1). Conclusion The developed technique can be used in determining trace amounts of copper, especially in agricultural water resources.