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Paper Information

Journal:   JOURNAL OF FOOD TECHNOLOGY AND NUTRITION   SPRING 2011 , Volume 8 , Number 2 (30); Page(s) 38 To 43.
 
Paper: 

DETERMINATION OF CADMIUM AND LEAD IN LETTUCE‚ MINT AND LEEK ULTIVATED IN DIFFERENT SITES OF SOUTHERN TEHRAN

 
 
Author(s):  GIVIANRAD M.H.*, SADEGHI TAHEREH, LARIJANI KAMBIZ, HOSSEINI SEYED EBRAHIM
 
* SCIENCE AND RESEARCH BRANCH, ISLAMIC AZAD UNIVERSITY, TEHRAN, IRAN
 
Abstract: 

Introduction: Contamination of vegetables by heavy metals namely cadmium and lead might create some health problems. In this project, the concentrations of lead and cadmium in some vegetables, which were cultivated in five regions of southern Tehran, were assessed.
Materials and Methods: Concentrations of cadmium and lead were determined after digestion through microwave by ICP- AES and GFAAS. The LODs were calculated 0.12
mgg-1 and 0.06 mgg-1 for lead and cadmium respectively and repeatability of the whole procedure expressed, as the RSD were 1.56% and 0.3% for lead and cadmium, respectively.
Results: Highest contamination of lead and cadmium were found in leek samples (0.14 mg/ kg and 0.15mg/kg, respectively) which were higher than the European Union permissible values for human consumption (0.1mgkg-1 fresh weight).
Conclusion: In this study significant differences were found among the mean concentration of cadmium for three samples of leek, lettuce and mint in five regions (P<0.05), but this was not observed for Pb.

 
Keyword(s): CADMIUM, GFAAS, ICP- AES, LEAD, MICROWAVE ASSISTED DIGESTION, VEGETABLES
 
References: 
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  Persian Abstract Yearly Visit 128
 
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