Table 3: Comparison of repeatability of HRP immobilized on different carriers after ten times reuse.

Carrier Material Relative Activity (%) Reference
Graphene oxide/Fe3O4 41 [30]
Amine-rich nanoporous BC 74.6 [33]
Chitosan-g-PEA 58 [41]
Fe2O3-Chitosan-Graphene oxide 90 Present work