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131248

Dissipation Kinetics of Pymetrozine in Tomato Field Ecosystem

Article

Last updated: 03 Jan 2025

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Abstract

Background: The food safety is one of the top priorities in the protection of public health. Pesticide residue has environmental and human health impact so, studding the behavior and dissipation of pesticides on foods is necessary. Objectives: This paper aimed to study the dissipation kinetics of pymetrozine to assess its effect in the ecosystem of tomato field, to expose residual dissipation behavior. Materials and methods: In a tomato-field ecosystem, tomato samples were collected after pymetrozine application in different time intervals 0, 1, 3, 5, and 7 days. The dissipation kinetics and residual behavior of insecticide were analyzed based on a QuEChERS method and quantified by high-performance liquid chromatography combined with photodiode array detection (HPLC-DAD). Results: The average recovery from tomatoes was 90.75% (88.5 - 93%), and 85 - 87.5% from soil. The coefficient variation of the method (CV %) was less than 7% in tomatoes, and less than 12%. in soil, ranged from 1.27% to 4.77% for repeatability. The low detection limit (LOD) and limit of quantitation (LOQ) of pymetrozine were determined to be 0.01 and 0.03 mg/kg, respectively. The dissipation kinetics of pymetrozine residue was C = 1.504 e−0.528t in tomato and C= 11.82 e−0.4082t in soil, in addition, residues half-lives were 1.31, and 2 days, respectively. The pre-harvest interval (PHI) of pymetrozine on tomatoes was 3 days. The recommended dosage could be considered a safe dosage for humans. Conclusion: This study would contribute to provide information on safe and proper use of the pesticide.

DOI

10.21608/ejhm.2020.131248

Keywords

Dissipation, pymetrozine, Tomato, QuEChERS, HPLC-DAD

Authors

First Name

Sherif H.

Last Name

Abd-Alrahman

MiddleName

-

Affiliation

Pesticides Residue and Environmental Pollution Department, Central Agricultural Pesticides Laboratory, Agricultural Research Center (ARC), Dokki, Giza

Email

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City

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Orcid

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First Name

Gamila, A. M.

Last Name

Kotb

MiddleName

-

Affiliation

Mammalian and Aquatic Toxicology Department, Central Agricultural Pesticides Laboratory, Agricultural Research Center (ARC)

Email

kotb_73@yahoo.com

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-

Orcid

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Volume

81

Article Issue

7

Related Issue

19561

Issue Date

2020-10-01

Receive Date

2020-12-20

Publish Date

2020-10-01

Page Start

2,305

Page End

2,309

Print ISSN

1687-2002

Online ISSN

2090-7125

Article File

EJHM_Volume 81_Issue 7_Pages 2305-2309.pdf

PDF . 456.6kB

Link

https://ejhm.journals.ekb.eg/article_131248.html

Detail API

https://ejhm.journals.ekb.eg/service?article_code=131248

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Original Article

Type Code

606

Publication Type

Journal

Publication Title

The Egyptian Journal of Hospital Medicine

Publication Link

https://ejhm.journals.ekb.eg/

MainTitle

Dissipation Kinetics of Pymetrozine in Tomato Field Ecosystem

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Article

Created At

22 Jan 2023