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84656

METHOD VALIDATION OF DITHIOCARBAMATES RESIDUES ON SOME EGYPTIAN COMMODITIES USING GC-MASS INSTRUMENT

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Last updated: 04 Jan 2025

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Abstract

Dithiocarbamates are a non systemic group of fungicides widely used to protect crops from fungal diseases. An applicable GC-Mass method is found to be specified to determine the residues of dithiocarbamates. The current methodology used to determine dithiocarbamates group (Maneb, Mancozeb, Metiram, Propineb, Thiram, Zineb) involves the analysis of carbon disulphide (CS2) generated after hydrolysis of the compound present in samples. The method performance was tested using recovery tests on different types of matrices (fresh fruits, vegetables and water samples). The average recoveries of CS2 at different concentration levels of CS2 varied between 70-120 %. The limit of quantitation is 0.05 ppm. The method showed to be linear up to 0.5 ppm. The reproducibility expressed as relative standard deviation was less than 12%. The measurement uncertainty in terms of expanded uncertainty and expressed as relative standard deviation (at 95 % confidence level and coverage factor of k = 2) is in the range of ± 24 %. A total of 71 samples of selected commodities (Green beans, Green peas, Green brocclli, Green onion, Potato leaves, Peanut and Water) were analyzed to assess levels of Dithiocarbamates during the period of January to December 2010 taken from different markets of Egypt.

DOI

10.21608/jppp.2011.84656

Authors

First Name

Abir

Last Name

El-Gohary

MiddleName

A.

Affiliation

Central Laboratory of Residue Analysis of Pesticides and Heavy Metals in Food, Agricultural Research Center, Ministry of Agriculture and Land Reclamation

Email

abirelgohary@hotmail.com

City

-

Orcid

-

First Name

M.

Last Name

N.

MiddleName

M.

Affiliation

-

Email

moustapha.m@qcap-egypt.com

City

-

Orcid

-

First Name

A.

Last Name

Hassan

MiddleName

-

Affiliation

Central Laboratory of Residue Analysis of Pesticides and Heavy Metals in Food, Agricultural Research Center, Ministry of Agriculture and Land Reclamation

Email

-

City

-

Orcid

-

Volume

2

Article Issue

1

Related Issue

12787

Issue Date

2011-01-01

Receive Date

2020-04-22

Publish Date

2011-01-01

Page Start

59

Page End

65

Print ISSN

2090-3677

Online ISSN

2090-3758

Article File

JPPP_Volume 2_Issue 1_Pages 59-65.pdf

PDF . 364.7kB

Link

https://jppp.journals.ekb.eg/article_84656.html

Detail API

https://jppp.journals.ekb.eg/service?article_code=84656

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7

Type

Original Article

Type Code

888

Publication Type

Journal

Publication Title

Journal of Plant Protection and Pathology

Publication Link

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

MainTitle

METHOD VALIDATION OF DITHIOCARBAMATES RESIDUES ON SOME EGYPTIAN COMMODITIES USING GC-MASS INSTRUMENT

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Article

Created At

22 Jan 2023