The iron dispenser FED dispenses a well-defined and reproducible amount of metal catalyst for AGE 3 systems and other graphitization lines. The fast and easy handling of FED saves time and its reproducibility provides the basis for high-precision ¹⁴C measurements. Manually operated and virtually wear-free, FED requires no additional equipment. Repeatability tests indicate that iron masses of typically 4–5 mg* are obtained readily and reliably with a variability of ± 2 %.
*The dispensed mass depends on the mesh size of the iron powder.