determination of lead in saudi arabian imported green tea by icp-ms

determination of lead in saudi arabian imported green tea by icp-ms

;Ahmed Othman;Seham Al-Ansi;Mohammed Al-Tufail
Journal of pharmaceutical and biomedical analysis 2012 Vol. 9 pp. 79-82
181
othman2012e-journaldetermination

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).

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217418
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10.1155/2012/132683
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