Viet Nam National University Ho Chi Minh City Logo

VNUHCM Journal of

Science and Technology Development

An official journal of Viet Nam National University Ho Chi Minh City, Viet Nam since 1997

ISSN: 1859-0128
Register Login
Article Open Access Logo

DETERMINATION OF PESTICIDE DIAZINON BY ADSORPTIVE SQUARE-WAVE STRIPPING VOLTAMMETRY WITH DROPPING MERCURY ELECTRODE

Hien Dinh Thi Nhu Nguyen 1, *
Lam Bich Tran 1
Giao Trong Nguyen 2

  1. University of Technology, VNU_HCM
  2. Russian-Vietnamese Tropical Centre, Southern Branch
Correspondence to: Hien Dinh Thi Nhu Nguyen, University of Technology, VNU_HCM. Email: pvphuc@hcmuns.edu.vn.
Volume & Issue: Vol. 12 No. 13 (2009) | Page No.: 85-92 | DOI: 10.32508/stdj.v12i13.2333
Published: 2009-07-15

Online metrics

Statistics from the website

  • Abstract Views: 3967
  • Galley Views: 1089

Statistics from Dimensions

Statistics from PlumX
Copyright © 2009 by the author(s).

Copyright The Author(s) 2023. This article is published with open access by Vietnam National University, Ho Chi Minh city, Vietnam. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0) which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited. 

Abstract

A method for trace determination of the pesticide Diazinon using adsorptive square-wave stripping voltammetry (AdSWSV) at the dropping mercury electrode (DME) was described. The pesticide was accumulated at the DME and a well-defined stripping peak was obtained at -1012 mV vs Ag/AgCl/KCI electrode in 0.4 N ammonium acetate electrolyte soluti pH 4.3. Peak current was linear over Diazinon concentration range of 800 – 3200 ppb. Detection limit was 16.49 ppb. Effects of some other pesticides (Chlorpyrifos and Cypermethrin) on Diazinon peak and the recovery of Diazinon from artichoke leaves were studied. The method was extended to the determination of Diazinon in artichoke leaves. The recovery of Diazinon from artichoke leaves was 90.31 - 93.55%. Detection limit was 29.82 ppb. Method had high repeatability and selectivity.

Comments