Kinetic Spectrophotometric Method for 4-nitrophenol Determination in Drinking Water
- 作者: Miletić A.1, Pecev-Marinković E.1, Grahovac Z.1, Pavlović A.1, Tošić S.1, Mišić I.1
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隶属关系:
- Faculty of Natural Sciences and Mathematics, Department of Chemistry
- 期: 卷 74, 编号 6 (2019)
- 页面: 521-527
- 栏目: Articles
- URL: https://journals.rcsi.science/1061-9348/article/view/183220
- DOI: https://doi.org/10.1134/S1061934819060066
- ID: 183220
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详细
This paper describes a rapid, highly sensitive and simple kinetic spectrophotometric method for determination of p-nitrophenol (p-NP) based on its activating effect on sulfanilic acid oxidation by hydrogen peroxide in basic media in the presence of Co2+ as catalyst. Coloration of sulfanilic acid is used to monitor the reaction spectrophotometrically at 368 nm. p-Nitrophenol can be determined in the ranges of 40‒200 and 200‒400 ng/mL under optimal conditions. The detection limit of the method according to 3σ criteria is 8 ng/mL. The RSD is 4.8‒0.8% for concentration interval 40‒200 ng/mL. The kinetic parameters of the reaction are reported, and the rate equations are suggested. The developed procedure was successfully applied to the rapid determination of p-NP in water samples using solid phase extraction for phenol preconcentration and removing interferences. The HPLC method was used as comparative method to verify results.
作者简介
A. Miletić
Faculty of Natural Sciences and Mathematics, Department of Chemistry
Email: emapecev@medianis.net
, Nis, 18000
E. Pecev-Marinković
Faculty of Natural Sciences and Mathematics, Department of Chemistry
编辑信件的主要联系方式.
Email: emapecev@medianis.net
, Nis, 18000
Z. Grahovac
Faculty of Natural Sciences and Mathematics, Department of Chemistry
Email: emapecev@medianis.net
, Nis, 18000
A. Pavlović
Faculty of Natural Sciences and Mathematics, Department of Chemistry
Email: emapecev@medianis.net
, Nis, 18000
S. Tošić
Faculty of Natural Sciences and Mathematics, Department of Chemistry
Email: emapecev@medianis.net
, Nis, 18000
I. Mišić
Faculty of Natural Sciences and Mathematics, Department of Chemistry
Email: emapecev@medianis.net
, Nis, 18000
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