Mohammadi, S.Z., Jafari, M. , Mohammadzadeh Jahani, P. , Ahmadi, S.A. and Mashayekh, R. 2021. Electrochemical determination of tramadol using modified screen printed electrode: Original scientific paper. Journal of Electrochemical Science and Engineering. 12, 1 (Dec. 2021), 127–135. DOI:https://doi.org/10.5599/jese.1141.