Halal Research Center of Islamic Republic of Iran. Tel.: +98-21-88909033 Fax: +98-21-88890858 Email: jhhhm@halal.ac.ir IR.MCIG No. 85915 Human, Health and Halal Metrics 2717-1027 2 1 2021 06 01 Simultaneous determination of heavy metals in Tahini by anodic stripping voltammetry 40 45 138172 10.30502/jhhhm.2021.288521.1034 EN Naficeh Sadeghi Department of Drug and Food Control, School of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran. 0000-0002-1613-1617 Hassan Rezaei Behzadi Department of Drug and Food Control, School of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran. Masoomeh Behzad Department of Drug and Food Control, School of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran. 0000-0002-1613-1617 Behrooz Jannat Halal Research Center, Ministry of Health and Medical Education, Tehran, Iran. Mannan Hajimahmoodi Department of Drug and Food Control, School of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran. 0000-0003-0006-6125 Journal Article 2021 05 30 <strong>Background and objective</strong>: Tahini is a regional dish prepared from sesame seeds and consumed as breakfast worldwide. It is a good source of zinc, copper, and group B vitamins. However, the product may be contaminated with toxic heavy metals. Therefore, our purpose was development of analytic method for simultaneous determination of zinc, copper, lead, and cadmium in Tahini. <strong>Materials and methods:</strong> Our work was conducted on 37 brands of Tahini (n = 74). The samples were purchased from local market of Tehran (Iran). Concentration of heavy metals was measured by polarograph. Voltammetric analysis was carried out by using 746 VA trace analyzer by differential pulse anodic stripping Voltammeter at Hanging mercury dropping electrode. <strong>Results and conclusion:</strong> Concentration of Zn, Cd, Pb, and Cu was calculated as 3.79 ±2.43, 1.48 ±0.08, 0.015 ±0.01, and 0.012 ±0.007 µg/100 g, respectively. Amount of Pb and Cd was lower than acceptable limit approved by CODEX in all the samples, while concentration of Cu and Zn was within the standard range. According to our investigation, Tahini can be used as a valuable food to meet the nutritional needs without any toxic effect arisen from deleterious heavy metals in the consumers. https://jhhhm.halal.ac.ir/article_138172_cdcf87ea608764aaec58923922917a87.pdf