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Oliveira Tda C, Freitas JM, Munoz RA, et al. A batch injection analysis system with square-wave voltammetric detection for fast and simultaneous determination of naphazoline and zinc. Talanta. 2016;152:308-13doi: 10.1016/j.talanta.2016.02.031.
Oliveira, T. d. a. . C., Freitas, J. M., Munoz, R. A., & Richter, E. M. (2016). A batch injection analysis system with square-wave voltammetric detection for fast and simultaneous determination of naphazoline and zinc. Talanta, 152308-13. https://doi.org/10.1016/j.talanta.2016.02.031
Oliveira, Thiago da Costa, et al. "A batch injection analysis system with square-wave voltammetric detection for fast and simultaneous determination of naphazoline and zinc." Talanta vol. 152 (2016): 308-13. doi: https://doi.org/10.1016/j.talanta.2016.02.031
Oliveira Tda C, Freitas JM, Munoz RA, Richter EM. A batch injection analysis system with square-wave voltammetric detection for fast and simultaneous determination of naphazoline and zinc. Talanta. 2016 May 15;152:308-13. doi: 10.1016/j.talanta.2016.02.031. Epub 2016 Feb 15. PMID: 26992525.
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Talanta. 2016 May 15;152:308-13. doi: 10.1016/j.talanta.2016.02.031. Epub 2016 Feb 15.

A batch injection analysis system with square-wave voltammetric detection for fast and simultaneous determination of naphazoline and zinc.

Talanta

Thiago da Costa Oliveira, Jhonys Machado Freitas, Rodrigo Alejandro Abarza Munoz, Eduardo Mathias Richter

Affiliations

  1. Instituto de Química, Universidade Federal de Uberlândia, Av. João Naves de Ávila, 2121 Uberlândia, MG, Brazil.
  2. Instituto de Química, Universidade Federal de Uberlândia, Av. João Naves de Ávila, 2121 Uberlândia, MG, Brazil. Electronic address: [email protected].

PMID: 26992525 DOI: 10.1016/j.talanta.2016.02.031

Abstract

In this work, a batch-injection analysis system with square-wave voltammetric (BIA-SWV) detection was applied for the first time to the simultaneous determination of inorganic (zinc) and organic (naphazoline) species. Both compounds were detected in a single run (70 injections h(-1)) with a small injection volume (∼100 µL). The calibration curves exhibited linear response range between 3.0 and 21.0 μmol L(-1) (r=0.999) for naphazoline and between 10.0 and 60.0 μmol L(-1) (r=0.992) for zinc. The detection limits were 0.13 and 0.04 μmol L(-1) for zinc and naphazoline, respectively. Good reproducibility was achieved for multiple measurements of a solution containing both species (RSD<1.0%; n=20). The results obtained with the BIA-SWV method for the simultaneous determination of naphazoline and zinc were compared to those obtained by HPLC (naphazoline) and by FAAS (zinc); no statistically significant differences were observed (95% confidence level).

Copyright © 2016 Elsevier B.V. All rights reserved.

Keywords: Boron doped diamond; Fast analysis; Inorganic and organic species; Portable system; Simultaneous analysis

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