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Original Research 


Determination of Zinc and Lead in Raw and Processed Milk

Huma Naz Awan, Hameed A. Tahir, Uzaira Rafique.

Abstract
Objective: Concentrations of the essential element zinc and potentially toxic element lead in different processed and raw milk samples.
Methods: The samples of raw milk, collected from different milk venders, while famous processed milk brands were digested by trichloroacetic acid extraction method and analyzed using flame atomic absorption spectrometry.
Results: The average concentration of lead in raw milk ranges from 0.08 to 0.14 ppm and in processed milk its average value is 0.13 ppm, which is higher than the recommended tolerable limit of 0.025 ppm. The zinc contents, both in the processed milk and raw milk ranged from 0.2258 to 0.6569 ppm, the values which are higher than the specified limit.
Conclusion: The raw or fresh milk, that the inhabitants of twin cities are consuming, is higher in lead levels and is unsafe for infants but safe for an adult. Zinc contents in raw or processed milk meets the specified limits. (Rawal Med J 2005;30:76-78).

Key words: Toxicity, lead, zinc, food, milk.


 
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How to Cite this Article
Pubmed Style

Huma Naz Awan, Hameed A. Tahir, Uzaira Rafique,. Determination of Zinc and Lead in Raw and Processed Milk . RMJ. 2005; 30(2): 76-78.

Web Style

Huma Naz Awan, Hameed A. Tahir, Uzaira Rafique,. Determination of Zinc and Lead in Raw and Processed Milk . https://www.rmj.org.pk/?mno=8864 [Access: December 08, 2023].

AMA (American Medical Association) Style

Huma Naz Awan, Hameed A. Tahir, Uzaira Rafique,. Determination of Zinc and Lead in Raw and Processed Milk . RMJ. 2005; 30(2): 76-78.


Vancouver/ICMJE Style

Huma Naz Awan, Hameed A. Tahir, Uzaira Rafique,. Determination of Zinc and Lead in Raw and Processed Milk . RMJ. (2005), [cited December 08, 2023]; 30(2): 76-78.


Harvard Style

Huma Naz Awan, Hameed A. Tahir, Uzaira Rafique, (2005) Determination of Zinc and Lead in Raw and Processed Milk . RMJ, 30 (2), 76-78.


Turabian Style

Huma Naz Awan, Hameed A. Tahir, Uzaira Rafique,. 2005. Determination of Zinc and Lead in Raw and Processed Milk . Rawal Medical Journal, 30 (2), 76-78.


Chicago Style

Huma Naz Awan, Hameed A. Tahir, Uzaira Rafique,. "Determination of Zinc and Lead in Raw and Processed Milk ." Rawal Medical Journal 30 (2005), 76-78.


MLA (The Modern Language Association) Style

Huma Naz Awan, Hameed A. Tahir, Uzaira Rafique,. "Determination of Zinc and Lead in Raw and Processed Milk ." Rawal Medical Journal 30.2 (2005), 76-78. Print.


APA (American Psychological Association) Style

Huma Naz Awan, Hameed A. Tahir, Uzaira Rafique, (2005) Determination of Zinc and Lead in Raw and Processed Milk . Rawal Medical Journal, 30 (2), 76-78.


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