Table 1 The results of the analysis of the serum examples (200 µL of the serum example with three different concentrations of AA, DA, UA (I, II & III). DPV conditions: 180 s; 0.1 M PBS solution (pH of 3.0); potential range −0.20 to + 0.80 V (UDL: under detection limit).

From: Composites of Bimetallic Platinum-Cobalt Alloy Nanoparticles and Reduced Graphene Oxide for Electrochemical Determination of Ascorbic Acid, Dopamine, and Uric Acid

Serum sample

Found (10−6 M)

Spiked (10−6 M)

Recovery (10−6 M)

% Recovery

AA

DA

UA

AA

DA

UA

AA

DA

UA

AA

DA

UA

I

UDL

UDL

33.0

100

10

10

96 ± 1.2

9.7 ± 0.9

42.8 ± 0.3

96

97

99.5

II

UDL

UDL

34.0

250

25

50

252 ± 0.4

24.6 ± 0.3

84.5 ± 0.2

100.8

98.4

100.6

III

UDL

UDL

33.0

500

50

100

505 ± 0.3

49.9 ± 0.3

132.9 ± 0.9

101.0

99.8

99.9

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