期刊
E-JOURNAL OF CHEMISTRY
卷 9, 期 1, 页码 79-82出版社
HINDAWI LTD
DOI: 10.1155/2012/132683
关键词
ICP-MS; Lead; Green tea; Infusion
资金
- King Faisal Specialist Hospital and Research Center
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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