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88022

DETERMINATION AND VALIDATION OF INORGANIC BROMIDE BY GAS CHROMATOGRAPHY IN SEVERAL FOODS

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Last updated: 04 Jan 2025

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Abstract

                                                                                                                                                                                                                                                                      An analytical method for determination of inorganic bromide in cereals, herbs, fruits and vegetables had been validated. The comminuted samples are suspended in an acidified aqueous solution of propylene oxide, with bromide being simultaneously extracted. Organic bromide is converted to mixture of 1-bromo-2-propanol and 2-bromo-1-propanol and partitioned by ethyl acetate and then determined by GC-ECD without further cleanup, the analytical parameters of the method such as limit of quantification and linearity have been investigated. The limit of quantification is found to be 2 mg/kg for dry samples and 0.2mg/kg for fresh samples. The method showed to be linear up to 100 mg/kg. The average recoveries at different concentration levels on the fresh samples and dry samples ranged from 84 to113%. The reproducibility expressed as relative standard deviation   was less than 12.8 % for dry samples and 11.6 % for fresh samples.  The measurement uncertainty expressed as expanded uncertainity in terms of relative standard deviation at 95 % confidence level was found to be within the range ±33%                                                        

DOI

10.21608/jppp.2014.88022

Keywords

validation, inorganic bromide

Authors

First Name

A.

Last Name

Mahmoud

MiddleName

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Affiliation

Central Lab. For Analysis of Pesticide Residues and Heavy Metals in Foods, Agricultural Research Center, Dokki, Giza, Egypt.

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City

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Orcid

-

First Name

R.

Last Name

Gouda

MiddleName

-

Affiliation

Central Lab. For Analysis of Pesticide Residues and Heavy Metals in Foods, Agricultural Research Center, Dokki, Giza, Egypt.

Email

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City

-

Orcid

-

First Name

Lamia

Last Name

Ryad

MiddleName

-

Affiliation

Central Lab. For Analysis of Pesticide Residues and Heavy Metals in Foods, Agricultural Research Center, Dokki, Giza, Egypt.

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-

City

-

Orcid

-

Volume

5

Article Issue

11

Related Issue

13199

Issue Date

2014-11-01

Receive Date

2020-05-09

Publish Date

2014-11-01

Page Start

1,015

Page End

1,023

Print ISSN

2090-3677

Online ISSN

2090-3758

Link

https://jppp.journals.ekb.eg/article_88022.html

Detail API

https://jppp.journals.ekb.eg/service?article_code=88022

Order

6

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

DETERMINATION AND VALIDATION OF INORGANIC BROMIDE BY GAS CHROMATOGRAPHY IN SEVERAL FOODS

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Article

Created At

22 Jan 2023