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86627

MULTIRESIDUE ANALYSIS OF 79 PESTICIDES IN STRAWBERRY, GREEN BEAN PODS, GRAPES AND PEACH FRUITS BY SOLID-PHASE EXTRACTION (SPE) AND GAS CHROMATOGRAPHY

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Last updated: 22 Jan 2023

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Abstract

Five solvents (n-pentane, ethyl acetate, dichloromethane, ethanol and iso propanol) were tested for extraction of six pesticides (lufenuron, chlorfenapyr, penconazole, diniconazole,  difenoconazole and azoxystrobin) from strawberry, green bean pods, grapes and peach. Pentane gave the cleanest extracts in comparison with the used solvents, thus it was used in the extraction of tested pesticides from the samples. Clean up using C18 cartridge resulted in higher recovery than using silica gel and florisil cartridges. A fast and easy multiresidue analytical method is presented for identifying and inspecting 79 pesticide residues, including organochlorine, organophosphate, synthetic pyrethroids and other pesticides in fruits and vegetables. Pesticide residues were extracted from samples with pentane followed by solid phase extraction. C18 cartridge was chosen for further clean-up of the extract and elution with pentane and ethyl acetate. Sixty-two and 17 pesticides were determined, by gas chromatography with an electron capture detector (GC-ECD) and a flame photometric detector (GC-FPD), respectively. The recovery rates for most pesticides in various fruits and vegetables were 80-109% with relative standard deviations < 9%.

DOI

10.21608/jppp.2011.86627

Authors

First Name

Dalia

Last Name

Barakat

MiddleName

A.

Affiliation

Economic Entomolgy and Pesticides Dept., Fac. Agric., Cairo Univ.

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Orcid

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First Name

S.

Last Name

El-Mahy

MiddleName

A.

Affiliation

Economic Entomolgy and Pesticides Dept., Fac. Agric., Cairo Univ.

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City

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Orcid

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First Name

M.

Last Name

ElSaid

MiddleName

A.

Affiliation

Central Agric., Pesticide Laboratory, Agric. Res. Center, Dokki, Giza

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City

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Orcid

-

First Name

Dalia

Last Name

El-Hefni

MiddleName

E.

Affiliation

Central Agric., Pesticide Laboratory, Agric. Res. Center, Dokki, Giza

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Orcid

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Volume

2

Article Issue

11

Related Issue

13010

Issue Date

2011-11-01

Receive Date

2020-05-03

Publish Date

2011-11-01

Page Start

957

Page End

972

Print ISSN

2090-3677

Online ISSN

2090-3758

Link

https://jppp.journals.ekb.eg/article_86627.html

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https://jppp.journals.ekb.eg/service?article_code=86627

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5

Type

Original Article

Type Code

888

Publication Type

Journal

Publication Title

Journal of Plant Protection and Pathology

Publication Link

https://jppp.journals.ekb.eg/

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Article

Created At

22 Jan 2023