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

• Authors: Jinzhang Gao , Jing Liu , Jie Ren , Xiuli Niu , Yingying Zhang , Wu Yang
• Languages of publication: EN

Abstracts

EN

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

EN

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

• Publisher: De Gruyter Open
• Journal: Open Chemistry
• Year: 2009
• Volume: 7
• Issue: 3
• Pages: 298-302

Dates

published

1 - 9 - 2009

online

21 - 6 - 2009

Contributors

author

Jinzhang Gao

• College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou, 730070, P. R. China

author

Jing Liu

• College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou, 730070, P. R. China

author

Jie Ren

• College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou, 730070, P. R. China

author

Xiuli Niu

• College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou, 730070, P. R. China

author

Yingying Zhang

• College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou, 730070, P. R. China

author

Wu Yang

• College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou, 730070, P. R. China

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Identifiers

DOI

10.2478/s11532-009-0060-9