Abstract
A fast and simple procedure for simultaneous determination of nimesulide and paracetamol (acetaminophen) was carried out by batch injection analysis with multiple pulse amperometric detection (BIA-MPA). The purpose is achieved with a unique and simple injection of a sample aliquot (150μL) onto the unmodified boron-doped diamond (BDD) electrode immersed in a BIA system. The analytical characteristics of our proposed method include elevated analytical frequency (up to 46 injections per hour), high stability (RSD<1.3%; n=12), low detection limits (0.293 and 0.297mgL−1 for paracetamol and nimesulide, respectively) and minimal waste generation. The proposed method presented similar results to those obtained by liquid chromatography at a 95% confidence level.
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