Abstract
AbstractElectroanalysis of benazepril HCl was successful using a carbon paste electrode modified with an ionic liquid crystal (1‐butyl‐1‐methylpiperidinium hexafluorophosphate) in presence of sodium dodecyl sulfate. The electrode performance was compared to ionic liquids (1‐n‐hexyl‐3‐methyl imidazolium tetrafluoroborate and 1‐butyl‐4‐methyl pyridinium tetrafluoroborate). Electrochemical determination of benazepril HCl was in the linear dynamic range of 8.89×10−7 to 1.77×10−5 mol L−1 (correlation coefficient 0.999) and LOD 7.17×10−9 mol L−1. benazepril HCl was determined using this sensor in presence of urine metabolites such as uric acid, ascorbic acid. Binary mixtures of dopamine/benazepril and amlodipine/benazepril were also determined successfully.
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