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Voltammetric behavior of bupirimate fungicide and its square wave voltammetric determination

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Abstract

The voltammeric behavior of bupirimate fungicide has been studied by square wave stripping voltammetry (SWSV). The insoluble R–HgS salt (where R is the bupirimate frame excluding sulfur) formed on the static hanging mercury drop electrode (SHMDE) was electrochemically reduced by giving a fairly well defined cathodic peak within the pH range of 1.0 to 8.0. The peak potentials (E p) were shifted toward more negative values with increasing pH, and a maximum peak response appeared at −1320 mV (vs. Ag/AgCl) at a pH 6.0. The calibration plot was a straight line in the range of 0.013 to 9.43 mg L−1. The detection limit at pH 6.0 was measured as 4.0 μg L−1 under the conditions of E acc = −700 mV and t acc = 10 s. The validity of the recommended method was assessed from the recoveries of spiked tap water, natural peach juice, and commercial peach juice.

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Authors and Affiliations

  1. Perfusion Techniques, Vocational School of Health Services, Okan University, 34959, Istanbul, Turkey

    Ersin Demir

  2. Department of Chemistry, Faculty of Science, Gazi University, 06500, Ankara, Turkey

    Ersin Demir & Recai İnam

Authors
  1. Ersin Demir
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  2. Recai İnam
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Correspondence to Recai İnam.

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Demir, E., İnam, R. Voltammetric behavior of bupirimate fungicide and its square wave voltammetric determination. Ionics 22, 269–276 (2016). https://doi.org/10.1007/s11581-015-1544-6

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  • DOI: https://doi.org/10.1007/s11581-015-1544-6

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