Research Article

Modified Carbon Nanotube Paste Electrode for Voltammetric Determination of Carbidopa, Folic Acid, and Tryptophan

Figure 2

Linear sweep voltammograms of FCDCNPE in 0.1 M PBS (pH 5.0) containing 0.35 μM CD at various scan rates; numbers 1–7 correspond to 2, 4, 6, 8, 10, 15, and 20 mV s−1, respectively. Insets: variation of (a) anodic peak current versus 𝜈 1 / 2 ; (b) normalized current ( 𝐼 𝑝 / 𝜈 1 / 2 ) versus 𝜈 .
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