Carbon Paste Electrode Modified With Cuo–Nanoparticles as a Probe for Square Wave Voltammetric Determination of Atrazine

Nadereh Rahbar; Hooshang Parham

doi:10.17795/jjnpp-9985

Jundishapur Journal of Natural Pharmaceutical Products

The Official Journal of Ahvaz Jundishapur University of Medical Sciences

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https://doi.org/10.17795/jjnpp-9985

Carbon Paste Electrode Modified With Cuo–Nanoparticles as a Probe for Square Wave Voltammetric Determination of Atrazine

Author(s):

Nadereh Rahbar^{1, 2,*},

Hooshang Parham³

1Nanotechnology Research Center, School of Pharmacy, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, IR Iran

2Department of Medicinal Chemistry, School of Pharmacy, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, IR Iran

3Department of Chemistry, Shahid Chamran University, Ahvaz, IR Iran

Jundishapur Journal of Natural Pharmaceutical Products:Vol. 8, issue 3; e94154

Published online:Jul 27, 2013

Article type:Research Article

Received:May 20, 2019

Accepted:May 05, 2013

How to Cite:Nadereh RahbarHooshang ParhamCarbon Paste Electrode Modified With Cuo–Nanoparticles as a Probe for Square Wave Voltammetric Determination of Atrazine.Jundishapur J Nat Pharm Prod.8(3):e94154.https://doi.org/10.17795/jjnpp-9985.

Abstract

Background: Atrazine (ATZ) is a widely used herbicide in most countries because of its low cost and good selectivity. The concentration of ATZ that the EPA considers safe to consume in drinking water is 3 ppb. Therefore, recently, there have been concerns about its determination in trace levels. This compound is not electro-active, so in this research indirect electrochemical method for its detection in low levels was proposed.

Objectives: The main aim of this study is the indirect determination of ATZ in water samples by voltammetry using nano-particle modified electrode.

Materials and Methods: A nano-CuO modified carbon paste electrode (NMCPE) is constructed and its application for indirect square wave voltammetric (SWV) detection of ATZ is reported. The sensing performance mechanism of the nano-CuO modified carbon paste electrode toward atrazine is due to complexation of the analyte with Cu (II) ion. The peak current for copper (II) reduction decreases with increase in the ATZ concentration and is monitored for its determination. Instrumental and chemical parameters influencing the detection of ATZ were optimized.

Results: The results revealed that decrease in peak current was proportional to ATZ concentration over the range of 5-75 ng/mL. The limit of detection (LOD) and limit of quantification (LOQ) were 2 ng/mL and 5.6 ng/mL (n = 20), respectively. The relative standard deviation (n = 10) for the determination of 10 and 50 ng/mL of ATZ solution was estimated as 4.9% and 4.2 %, respectively.

Conclusions: This easily fabricated electrode together with the fast and sensitive SW voltammetry was successfully applied for the determination of concentration of ATZ at trace levels, in different water samples.

Keywords

Atrazine

Nanoparticles

Cupric Oxide

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Author(s):

Nadereh Rahbar:[PubMed][Scholar]
Hooshang Parham:[PubMed][Scholar]