Magnetic entrapment for fast and sensitive determination of metronidazole with a novel magnet-controlled glassy carbon electrode

- A novel magnetic-controlled glassy carbon electrode (MCGCE) was designed.
- A sensor was used to detect metronidazole using MCGCE and magnetic-MIP.
- The electrochemical senor showed high efficiency for the test of metronidazole.
- The sensor offered a response for metronidazole in range from 0.032 to 3.4 μmol L−1.
- The sensor performed very well on the detection of serum and urine samples.