Title of article
Determination of Lead and Cadmium Content of Dill (Anethum graveolens) and Onion (Allium Cepa L.) Cultivated in Khozestan/Iran
Author/Authors
Ramezani, Zahra Jundishapur University of Medical Sciences - Toxicology Research Center, Ahvaz , Aghel, Nasrin Jundishapur University of Medical Sciences - Faculty of Pharmacy, Ahvaz , Shiralipour, Roohollah Department of Chemistry - Center of Researches & Sciences - islamic Azad University, Ahvaz , Zadeh Dabbagh, Reza Department of Chemistry - Center of Researches & Sciences - islamic Azad University, Ahvaz
Pages
7
From page
197
To page
203
Abstract
In this study, 60 composite samples of dill and onion from two different cultivated
areas in Khozestan province, Iran, were collected and analyzed for the presence and
determination of lead and cadmium by flame atomic absorption spectrometry.
Samples were burned according to AOAC at 450 °C, and the residue was dissolved
in nitric acid. Lead and Cadmium contents were determined using calibration
curves at wavelength 217 and 283.8 nm, for Cd and Pb, respectively. In order to
evaluate reliability of the results obtained by external calibration curve, standard
addition data for a number of randomly selected samples were compared with
those of calibration. The results were in good agreements. Two Samples of each
vegetable were also spiked with a certain amount of Pb and Cd. The recoveries of
standards were in the range of 90-110%. Reproducibility was also good. Mean Cd
and Pb concentrations were 0.208, and 1.972 mg.kg-1 dill, respectively. In the case
of onion, no lead was detected, but its cadmium content was 0.0475 mg.kg-1. Pb and
Cd content of dill were higher than permitted limits reported in Codex.
Keywords
Cadmium , Dill , Lead , Flame Atomic Absorption Spectrometry , Onion
Journal title
Astroparticle Physics
Serial Year
2011
Record number
2481918
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