Spiked diclofenac

200 ng/mL

1000 ng/mL

2000 ng/mL

Recovery percent
(mean ± S.D.)

87.34 ±  5.25

80.43 ± 4.35

70.67 ± 2.18

Table 5: Recovery percent of diclofenac sodium electrochemical determination in human urine (n = 3) by MWCNTs-G/Ag electrode.