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In present study three toxic metals, cadmium (Cd), nickel (Ni) and lead (Pb) were determined in chocolates and candy samples available in local markets of Hyderabad, Pakistan.Concentrations of understudy toxic metals (TMs) were determined by electrothermal atomic absorption spectrometry (ETAAS) prior to microwave assisted acid digestion. Validation of the methodology was performed by standard addition methodand conventional acid digestion on electric hot plate to obtained TMs concentration, for comparative purpose to obtain results within the 95% confidence level. No significant differences were observed for TMs obtained from both methods (P = 0.05).The concentration of Cd, Ni and Pb were observed in chocolates and candy samples is ranged as of 0.099 -0.353, 1.45 -4.33 and 1.11-2.48 μg/g, respectively. The results indicated that cocoa-based chocolates have higher contents of TMs than milk-based chocolates and candies
Nusrat Jalbani, Tasneem Gul Kazi, Hassan I. Afridi, MohammadBilal Arain. (2009) Determination of Toxic Metals in Different Brand of Chocolates and Candies, Marketed in Pakistan, Pakistan Journal of Analytical & Environmental Chemistry, Volume 10, Issue 1-2.
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