Abstract
In pH 5.5, 0.1 mol l−1 HAc-NaAc buffer solution, trinitrophenol has been determined quantitatively with differential pulse voltammetry by detecting its reduction peak currents at the glassy carbon electrode. The detection sensitivity was enhanced significantly by the addition of the surfactant of cetyl pyridinium chloride, and the enhancement mechanism was also studied in detail. The linear calibration range was 8.0 × 10−7 to 2.0 × 10−4 mol l−1, and the detection limit was established to be 1.9 × 10−7 mol l−1. This method has been applied to the determination of trinitrophenol in water sample, and the recovery was from 97.6 to 103.5%.
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Published in Russian in Elektrokhimiya, 2009, Vol. 45, No. 10, pp. 1281–1286.
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Wang, X.G., Fan, Y.J. A novel electrochemical method for the determination of trinitrophenol. Russ J Electrochem 45, 1188–1192 (2009). https://doi.org/10.1134/S1023193509100127
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DOI: https://doi.org/10.1134/S1023193509100127