Determination of Formaldehyde by HPLC with Stable Precolumn Derivatization in Egyptian Dairy Products
Joint Authors
El-Zwahry, A. A.
Emara, E. A.
Sebaei, Ahmed Salem
Gomaa, Ahmed M.
Source
International Journal of Analytical Chemistry
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-11-08
Country of Publication
Egypt
No. of Pages
5
Main Subjects
Abstract EN
Formaldehyde is one of the most dangerous chemical compounds affecting the human health; exposure to it from food may occur naturally or by intentional addition.
In this study a high performance liquid chromatography method for determination of formaldehyde in dairy products was described.
The dairy samples were reacted and extracted with a warmed organic solvent in the presence of derivatizing agent 2,4-dinitrophenylhydrazine (DNPH) and formaldehyde; the mixture was centrifuged and followed by diode array detection.
The method is validated and gives average recovery of formaldehyde at the three different levels 0.1, 5.0, and 10.0 mg/kg varied between 89% and 96%.
The method is linear from the limit of quantification 0.1 mg/kg up to 10 mg/kg levels.
This method is intended for formaldehyde analyses in dairy products simply with stable derivatization, minimum residue loss, excellent recovery, and accurate results with a sensitive limit of detection 0.01 mg/kg.
90 dairy samples from milk, cheese, and yogurt were investigated from seven Egyptian governorates and all samples were free from formaldehyde.
American Psychological Association (APA)
Sebaei, Ahmed Salem& Gomaa, Ahmed M.& El-Zwahry, A. A.& Emara, E. A.. 2018. Determination of Formaldehyde by HPLC with Stable Precolumn Derivatization in Egyptian Dairy Products. International Journal of Analytical Chemistry،Vol. 2018, no. 2018, pp.1-5.
https://search.emarefa.net/detail/BIM-1166333
Modern Language Association (MLA)
Sebaei, Ahmed Salem…[et al.]. Determination of Formaldehyde by HPLC with Stable Precolumn Derivatization in Egyptian Dairy Products. International Journal of Analytical Chemistry No. 2018 (2018), pp.1-5.
https://search.emarefa.net/detail/BIM-1166333
American Medical Association (AMA)
Sebaei, Ahmed Salem& Gomaa, Ahmed M.& El-Zwahry, A. A.& Emara, E. A.. Determination of Formaldehyde by HPLC with Stable Precolumn Derivatization in Egyptian Dairy Products. International Journal of Analytical Chemistry. 2018. Vol. 2018, no. 2018, pp.1-5.
https://search.emarefa.net/detail/BIM-1166333
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1166333