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187175

Validation using QuEChERS method, risk assessment and preharvest intermission using GC-MS for determination of azoxystrobin in tomato and cucumber

Article

Last updated: 01 Jan 2025

Subjects

-

Tags

Environmental chemistry

Abstract

Azoxystrobin residues in tomatoes and cucumbers was accurately determined by gas chromatography / mass spectrometry (GC-MS) in the selective ion monitoring (SIM) mode (the selected ion: m/z 344, 372, 388 and 403). The average recoveries at three levels came to range from 83.92% to 95.77% with a relative standard deviation of less than 20.0%. The limit of detection and the limit of quantitation were 0.01 and 0.05 mg kg-1. Furthermore, the residues in tomatoes and cucumbers were estimated over 15 days. As for half lives, they were shown to be rated between 1.69 and 4.5 days for both tomatoes and cucumbers after the application with recommended and double recommended dose, and found to be less than maximum residue limit so it can be recommended as preharvest gap. The dietary intake was not found to be abiding by the maximum permissible intake for both recommended or even double recommended dose, as it was found that both were less than the maximum permissible intake; which leads a vast improvement in azoxystrobin human health safety satisfaction.

DOI

10.21608/ejchem.2021.76725.3756

Keywords

Risk assessment, PHI, method validation, QuEChERS, GC-MS, Azoxystrobin

Authors

First Name

dalia

Last Name

Elhefny

MiddleName

Elsayed

Affiliation

Pesticides Residues and Environmental Pollution, Central Agricultural Pesticides Laboratory, Agricultural Research Center, Giza, Egypt

Email

dalia_elhafny@yahoo.com

City

-

Orcid

-

First Name

Hany

Last Name

Hunter

MiddleName

-

Affiliation

Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr El-Aini street 11562, Egypt

Email

hany.hunter@pharma.cu.edu.eg

City

-

Orcid

-

First Name

Rania

Last Name

Helmy

MiddleName

Mohamed Ahmed

Affiliation

Pesticide Residues and Environmental Pollution department, Central Agricultural Pesticide Laboratory, Agricultural Research Center,12618 Giza, EGYPT

Email

raniahelmy2003@gmail.com

City

Giza

Orcid

0000-0002-3911-8714

Volume

64

Article Issue

12

Related Issue

27765

Issue Date

2021-12-01

Receive Date

2021-05-19

Publish Date

2021-12-01

Page Start

7,421

Page End

7,429

Print ISSN

0449-2285

Online ISSN

2357-0245

Link

https://ejchem.journals.ekb.eg/article_187175.html

Detail API

https://ejchem.journals.ekb.eg/service?article_code=187175

Order

59

Type

Original Article

Type Code

297

Publication Type

Journal

Publication Title

Egyptian Journal of Chemistry

Publication Link

https://ejchem.journals.ekb.eg/

MainTitle

Validation using QuEChERS method, risk assessment and preharvest intermission using GC-MS for determination of azoxystrobin in tomato and cucumber

Details

Type

Article

Created At

22 Jan 2023