A Sensitive and Selective Electrochemical Sensor Based on an Iron-Based Nanocomposite-Modified Electrode for the Detection of Dopamine in Pork

Here, a highly sensitive and selective electrochemical sensor for dopamine (DA) determi- nation in pork was developed. This sensor was fabricated using iron-based nanocompos- ites (Fe@(C-S-N)) to modify a glassy carbon electrode (GCE) substrate. The Fe@(C-S-N) nanocomposites were synthesized through a facile low-temperature chemical precipita- tion approach by adopting ferrous sulfate and melamine as raw materials, with their structural and compositional properties thoroughly investigated...