Browsing Central Laboratories Unit Research by Author "Shraim, Amjad M."
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Concentrations of essential and toxic elements and health risk assessment in brown rice from Qatari market
Shraim, Amjad M.; Ahmad, Mohammad I.; Rahman, Mohammad Sulaiman F.; Ng, Jack C. ( Elsevier , 2022 , Article)Twenty-two brown rice varieties available in the Qatari market were analyzed for essential and toxic elements by ICP-MS. Found concentrations (µg/kg) were: As: 171 ± 78 (62–343), Cd: 42 ± 60 (4–253), Cr: 515 ± 69 (401–639), ... -
Synthesis of Novel Aqua ƞ4-NNNO/Cu(II) Complexes as Rapid and Selective Oxidative Catalysts for O-Catechol: Fluorescence, Spectral, Chromotropism and Thermal Analyses
Shraim, Amjad M.; Salih, Kifah S.M.; Al-Soufi, Ranim E.; Al-Mhini, Soaad R.; Ahmad, Mohammad I.; Warad, Ismail... more authors ... less authors ( MDPI , 2021 , Article)A new tetradentate Schiff base (SB), (E)-4-fluoro-2-(1-((2-(piperazin-1-yl)ethyl)imino)ethyl)phe-nol, was synthesized from condensation of 2-(1-piperazinyl)ethylamine and 5-fluoro-2-hydroxyacetophe-none. This ligand was ...