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A boron‐doped diamond (BDD) electrode coupled to flow injection analysis (FIA) was firstly developed for determination of N‐acetyl‐L‐cysteine (NAC) in drug formulations. The effects of experimental parameters including pH, applied potential and scan rate on the response were investigated. FIA amperometry was applied as an automatic method for the quantitative detection of trace amounts of NAC. A wide...
A flow injection with pulsed amperometric detection for determination of doxycycline or chlortetracycline in pharmaceutical formulations is described. Doxycycline or chlortetracycline were studied at a gold rotating disk electrode with cyclic voltammetry as a function of pH of supporting electrolyte solution. The optimized PAD waveform parameters were obtained with a flow injection system. The optimized...
A flow injection method with pulsed amperometric detection (PAD) was proposed for the determination of tetracycline in pharmaceutical formulations. Tetracycline was also studied at a gold rotating disk electrode with cyclic voltammetry as a function of the pH of supporting electrolyte solution. The well-defined cyclic voltammogram, providing the highest peak current at 1.15V versus Ag/AgCl, was obtained...
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