A novel microelectrode array combining screen-printing and femtosecond laser ablation technologies: Development, characterization and application to cadmium detection

作者：Cugnet Cyril; Zaouak Olivier; Rene Alice; Pecheyran Christophe; Potin Gautier Martine; Authier Laurent^*

来源：Sensors and Actuators B: Chemical , 2009, 143(1): 158-163.

DOI：10.1016/j.snb.2009.07.059

• Microelectrode arrays
• Screen-printing
• Square-wave anodic stripping voltammetry
• Cadmium
• Laser ablation
• Environmental sample

The elaboration of a new kind of microelectrode array based on femtosecond laser ablation and screen-printing process was reported. The electrochemical behavior of this sensor, constituted by a square array of 8 x 8 screen-printed carbon-based microelectrodes, was characterized by cyclic voltammetry (CV) and compared with macroelectrodes. With an interelectrode distance-to-electrode diameter ratio of 21, this screen-printed microelectrode array (SP mu EA) has shown a superior diffusion behavior and a greater mass-transport. The analytical performances of this mercury modified SP mu EA were evaluated for cadmium detection. Promising results were obtained with synthetic cadmium solutions in acetate buffer by square-wave anodic stripping voltammetry (SWASV) technique with a detection limit of 1.3 mu g L(-1) and were confirmed with application to a river sample.

• 出版日期2009-12-4