Electrode
Added (mg/mL)
Detected (mg/mL)
Recovery (%)
RSD %
GCE-MWCNT-NiO
40
44.9
112.4
0.1
GCE-MWCNT-ZnO
40
39.1
97.8
0.13
GCE-MWCNT-Fe
3
O
4
40
36.1
90.3
0.3
Table 4:
Results of detection of DA in dopamine hydrochloride injection (n=5).