Arsenic, cadmium and lead in medicinal herbs and their fractionation

被引:129
作者
Arpadjan, S. [1 ]
Celik, G. [2 ]
Taskesen, S. [2 ]
Gucer, S. [2 ,3 ]
机构
[1] Univ Sofia, Fac Chem, Sofia 1164, Bulgaria
[2] Bursa Test & Anal Lab, TR-16372 Osmangazi, Bursa, Turkey
[3] Uludag Univ, Dept Chem, Bursa, Turkey
关键词
arsenic; cadmium; lead; herbal medicines; fractionation;
D O I
10.1016/j.fct.2008.05.027
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
Arsenic, cadmium and lead were determined for quality control monitoring purposes of Bulgarian herbs and their infusions by inductively Coupled plasma mass spectrometry and electrothermal atomic absorption spectrometry. Twelve samples of yarrow (Achillea millefolium), 18 of chamomile (Flores Chamomillae), 8 of bearberry leaves (Folia uvae ursi), 24 of peppermint (Mentha piperitoe folium), 10 of hibiscus (Hibiscus sabdariffa), 14 of oregano (Origanum vulgare) and 12 of thyme (Thymus serpyllum) were analyzed. The studied toxic elements were present in the medicinal plants (12-225 mu g/kg As, 15-268 mu g/kg Cd, 0.2-8.6 mg/kg Pb). Arsenic was found in all herbal infusions at levels up to 0.4 mu g/l. Cadmium was present in infusion!; of chamomile, hibiscus, peppermint and thyme at levels Lip to 0.7 mu g/l. Lead was detected only in hibiscus infusions (2-3 mu g/l). It was established that the major part of arsenic and lead in herbal infusions existed in biomacromolecular fraction. Cadmium appears to be present mainly in cationic form at pH 1 (stomach acidity), but at pH 7.6 (intestine acidity) there is a non-cationic fraction as well. (c) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码:2871 / 2875
页数:5
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