A novel Polyoxometalate@UiO-66/P@ERGO nanohybrid with exceptional peak potential separation for simultaneous detection of dopamine and uric acid

) of 0.18 mV. The sensor exhibited high repeatability (RSD: 3.01% for UA and 4.43% for DA), good reproducibility (RSD: 3.61% for UA, 4.71% for DA), and excellent stability and long-term stability over 30 days (RSD = 3.15%). Selectivity studies confirmed negligible interference from common biological compounds, including ascorbic acid. These results indicate that the proposed sensor offers a reliable, selective, and stable platform for real-time, simultaneous detection of multiple analytes in complex biological samples, highlighting its potential for clinical and biomedical applications.