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Electrochemistry of the arrow poison, tubocurarine, using boron doped diamond electrode: Experimental and theoretical approaches

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2019
Authors
Ðurđić, Slađana
Stanković, V.
Perić, Marko
Ognjanović, Miloš
Šovrc, Ľubomír
Mutić, Jelena
Stanković, Dalibor
Article (Published version)
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Abstract
In present work boron doped diamond (BDD) electrode was applied for studying electrochemical behavior, as well as for quantitative determination of natural alkaloid, tubocurarine (arrow poison/ TUB). Electrochemical behavior was investigated using several organic solvents and aqueous buffers, at different pHs, as supporting electrolytes. After selection of the most appropriate supporting electrolyte and investigation of its electrochemical behavior, analytical procedures for quantitative analysis of TUB were developed in an acetonitrile/methanol (80:20) mixture and in 1 mol L−1 nitric acid, which had linear quantification ranges from 4 × 10−6 to 1 × 10−4 mol L−1 (LOD = 3.07 × 10−6 mol L−1) and 4 × 10−6 to 9 × 10−5 mol L−1 (LOD = 2.45 × 10−6 mol L−1 and 5.28 × 10−7 mol L−1, depending on the selected peak), respectively. The oxidation mechanism of TUB was proposed from the theoretical aspect. Remarkable selectivity and good sensitivity were obtained after the TUB quantification method wa...s optimized, allowing application of the developed method for TUB quantification in biological fluids, with excellent reproducibility, accuracy and precision.

Keywords:
human urine samples / voltammetric determination / sensitive determination / drug / sensors / quantification / approximation / energy
Source:
Journal of the Electrochemical Society, 2019, 166, 14, G157-G161
Publisher:
  • Electrochemical Society Inc.
Projects:
  • Application of advanced oxidation processes and nanostructured oxide materials for the removal of pollutants from the environment, development and optimisation of instrumental techniques for efficiency monitoring (RS-172030)
  • Grant Agency of the Slovak Republic (grant No. 1/0489/16)

DOI: 10.1149/2.1241914jes

ISSN: 0013-4651

WoS: 000490166300001

Scopus: 2-s2.0-85074076971
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URI
http://cer.ihtm.bg.ac.rs/handle/123456789/3253
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