Research Article

A New Electrochemical Sensor for Direct Detection of Purine Antimetabolites and DNA Degradation

Figure 3

The CVs recorded at GrO-Chit/CSE (a), GrO-IL-Chit/CSE (b), and GrO-IL-AuNPs-Chit/CSE (c) in 5.0 mmol·L−1 K3[Fe(CN)6] containing 1.0 mol·L−1 KCl ( = 0.1 V·s−1). The voltammogram recorded at a bare CSE is indicated by a dotted line.