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This work describes the fabrication and application of a disposable copper random microarray (DCRM) of electrodes. The DCRM was fabricated by deposition of two toner pattern masks on a copper substrate. In the first step, the mask layers were drawn using a graphical software and then printed on waxed papers. The first toner mask delimited the disc area (2mm diameter) and the second toner mask (with...
This paper describes the determination of acetylsalicylic acid (ASA) as salicylate (SA) in pharmaceutical formulations by using amperometric detection with copper electrodes in 0.10 mol l -1 NaOH solution. Batch injection analysis (BIA) was explored for this application. The system exhibited sharp current response peaks, rapid washout and excellent repeatability. A large linear dynamic...
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