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Open Chemistry

formerly Central European Journal of Chemistry


IMPACT FACTOR 2017: 1.425
5-year IMPACT FACTOR: 1.511

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2391-5420
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Volume 7, Issue 3

Issues

Volume 13 (2015)

Determination of p-nitroaniline by the tartrate-acetone-Mn2+-KBrO3-H2SO4 double organic substrate oscillating system using non-equilibrium stationary state

Jinzhang Gao / Jing Liu / Jie Ren / Xiuli Niu / Yingying Zhang / Wu Yang
Published Online: 2009-06-21 | DOI: https://doi.org/10.2478/s11532-009-0060-9

Abstract

This paper described the determination of p-nitroaniline in a double organic substrate oscillating system of tartrate-acetone-Mn2+-KBrO3-H2SO4. Under the optimum conditions, temperature was chosen as a control parameter to design the bifurcation point and proposed a convenient method for determination of p-nitroaniline. Results showed that the system consisting of 3.5 mL 0.06 mol L−1 tartrate, 4.0 mL 0.7 mol L−1 H2SO4, 1.5 mL 1.5×10−4 mol L−1 MnSO4, 4.0 mL 0.4 mol L−1 acetone and 7.0 mL 0.05 mol L−1 KBrO3 was very sensitive to the surrounding at 33.5°C. A good linear relationship between the potential difference and the negative logarithm concentration of p-nitroaniline was obtained to be in the range of 2.50×10−7∼3.75×10−5 mol L−1 with a lower detection limit of 2.50×10−8 mol L−1.

Keywords: Double organic substrate oscillating chemical system; Non-equilibrium stationary state; p-Nitroaniline; Determination

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About the article

Published Online: 2009-06-21

Published in Print: 2009-09-01


Citation Information: Open Chemistry, Volume 7, Issue 3, Pages 298–302, ISSN (Online) 2391-5420, DOI: https://doi.org/10.2478/s11532-009-0060-9.

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© 2009 Versita Warsaw. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

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[1]
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[2]
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