Determination of Lead in Saudi Arabian Imported Green Tea by ICP-MS. Issue 1 (2012)

• Record Type: Journal Article
• Authors: Othman, Ahmed; Al-Ansi, Seham; Al-Tufail, Mohammed
• Is Part Of: E-Journal of Chemistry. Volume 9:Issue 1(2012)
• Page Start: 79
• Page End: 82
• Publication Date: 2012
• Subjects: ICP-MS -- Lead -- Green tea -- Infusion
• DOI: 10.1155/2012/132683
• Languages: English
• ISSNs: 0973-4945

Abstract

Abstract : Lead (Pb) in nine different Saudi Arabian imported green tea samples originated from China has been determined using inductively coupled plasma mass spectrometry (ICP-MS). Tea infusion and microwave acid digestion procedures are used for sample pre-treatment. The concentrations range of lead (total) in the analyzed green tea samples is 0.231 – 6.340 mg/kg. The total concentration of lead released 3% – 19% into tea infusions with boiling water. The calculated average daily intakes of lead in tea infusions was low and within the bounds of safety (≤0.009 mg/day).