Table 1 Results obtained by the non-enzymatic electrochemical immunoassay and commercial AFB1 ELISA kit (MaxSignal AFB1 ELISA) for spiked or naturally contaminated peanut samples.

From: Cobalt-Porphyrin-Platinum-Functionalized Reduced Graphene Oxide Hybrid Nanostructures: A Novel Peroxidase Mimetic System For Improved Electrochemical Immunoassay

Type

No.

Method; concentration (ng mL–1, n = 3)a

Electrochemical immunoassay

AFB1 ELISA kit

t exp

spiked peanut

1

0.008 ± 0.001

No detection

No application

 

2

0.54 ± 0.12

0.51 ± 0.32

0.14

 

3

1.32 ± 0.21

1.39 ± 0.21

0.41

 

4

4.67 ± 0.89

4.51 ± 0.43

0.28

 

5

9.32 ± 0.76

9.65 ± 0.89

0.49

naturally contaminated peanut

1

4.32 ± 0.88

4.12 ± 1.01

0.26

 

2

9.54 ± 1.32

9.76 ± 1.13

0.22

 

3

6.45 ± 1.12

6.23 ± 0.89

0.26

 

4

3.21 ± 0.89

3.11 ± 0.78

0.15

 

5

10.3 ± 1.73

10.9 ± 1.32

0.45

  1. aEach sample was determined in triplicate and the high-concentration AFB1 sample was assayed with an appropriate dilution.
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