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Assessment of toothpaste from local and imported origins for its heavy metals and minerals composition

Author Affiliations

  • 1Department of Environmental Sciences, University of Veterinary and Animal Sciences, Lahore, Pakistan
  • 2Department of Environmental Sciences, University of Veterinary and Animal Sciences, Lahore, Pakistan
  • 3Environmental Consultancies & Options (ECO), Lahore, Pakistan

Int. Res. J. Environment Sci., Volume 10, Issue (1), Pages 74-80, January,22 (2021)


The purpose of this study was to assess the concentration of heavy metals (Pb, Zn, Mn, Ni, Se, Cr, Cu & Fe) and minerals (Na, Ca, P& F) in different regular and herbal toothpaste collected from local markets and pharmacies of Lahore. They were divided into five groups each containing five toothpastes. Samples were digested in fume hood by using the diacid method. Mineral samples (Na, Ca & P) were analyzed by using Multi-channel Flame photometer. While Samples of heavy metals were measured using Atomic Absorption Spectrophotometer. Fluoride was determined by spectrophotometer. The result showed that Ca, Zn, Fe, Cr, Ni and Mn was above than permissible limit while K and Pb were within permissible limit. Cu was not detected at all. Fluoride was present within permissible limit in three groups while in remaining groups its concentration was slightly higher than permissible limit. Seand Na was above permissible limit in four group while in imported regular it was within permissible limit.


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