Amperometric sensing of norepinephrine at picomolar concentrations using screen printed, high surface area mesoporous carbon

- Screen printed norepinephrine sensors are prepared using high surface area carbon inks.
- The impact of surface area and pore size of the carbons to the sensitivity of the sensors has been investigated.
- Increase in surface area and pore size improves the sensitivity of the sensor.
- The detection limit of norepinephrine in whole rabbit blood is as low as 100 pg mL−1.