International Journal of Analytical Chemistry / 2020 / Article / Tab 2 / Research Article
Simultaneous Detection of Ascorbic Acid, Dopamine, and Uric Acid Using a Novel Electrochemical Sensor Based on Palladium Nanoparticles/Reduced Graphene Oxide Nanocomposite Table 2 Comparison of different electrodes in the simultaneous detection of AA, DA, and UA.
Electrode pH Linear range (μ M); Sensitivity (μ A · μ M−1 · cm−2 ) Ref. AA DA UA MgO nanobelts/GCE 5.0 2.5–15, 25–150; 0.198, 0.028 0.125–7.5 7.908 0.5–3, 5–30; 2.83, 0.962 [30 ] SnO2 /chitosan/GCE 7.0 20–220; 0.127 0.1–18; 2.773 1–100; 2.391 [45 ] 3DGHa -AuNPsb /GCE 7.0 1.0–700; 0.217 0.2–30; 3.897 1–60; 1.703 [46 ] AuNPsb @MoS2 nanosheets/GCE 4.0 12–800; 0.481 10–300; 0.979 8–900; 0.465 [47 ] Pd3 Pt1 c /PDDAd -rGO/GCE 7.4 40–1200; 0.359 4–200; 0.639 4–400; 0.498 [48 ] CBe /GCE 7.0 1.91–37.8; 0.214 0.599–11.8; 1.570 1.01–14; 0.680 [49 ] Pt@NP-AuSnf /CFPg 7.0 200–1200; 0.0004 0.5–10; 0.0017 25–500; 0.0003 [50 ] PdNPs/rGO/GCE 7.2 500–3500; 0.079 3–15, 15–42; 10.893, 6.083 300–1400; 0.481 This work
a: three dimensional graphene hydrogel; b: gold nanoparticles; c: Pd-Pt bimetallic nanoparticles; d: poly(diallyldimethylammonium chloride); e: nanostructured carbon black; f: Pt nanoparticle-modified nanoporous AuSn; g: Ni-buffered flexible carbon fiber paper.