Determination of trace elements in Syrian medicinal plants and their infusions by energy dispersive X-ray fluorescence and total reflection X-ray fluorescence spectrometry

被引:35
作者
Khuder, A. [1 ]
Sawan, M. Kh. [1 ]
Karjou, J. [1 ]
Razouk, A. K. [2 ]
机构
[1] Atom Energy Commiss, Dept Chem, Damascus, Syria
[2] Atom Energy Commiss, Dept Agr, Damascus, Syria
关键词
X-ray fluorescence; Total reflection X-ray fluorescence; Medicinal plants; Infusions; MULTIELEMENT DETERMINATION; TEA INFUSIONS; SAMPLES; LEAVES; SPECIATION; MANGANESE; COPPER; BLACK; IRON; XRF;
D O I
10.1016/j.sab.2009.05.020
中图分类号
O433 [光谱学];
学科分类号
0703 ; 070302 ;
摘要
X-ray fluorescence (XRF) and total-reflection X-ray fluorescence (TXRF) techniques suited well for a multi-element determination of K, Ca, Mn, Fe, Cu, Zn, Rb, and Sr in some Syrian medicinal plant species. The accuracy and the precision of both techniques were verified by analyzing the Standard Reference Materials (SRM) peach-1547 and apple leaves-1515. A good agreement between the measured concentrations of the previously mentioned elements and the certified values were obtained with errors less than 10.7% for TXRF and 15.8% for XRF. The determination of Br was acceptable only by XRF with an error less than 24%. Furthermore, the XRF method showed a very good applicability for the determination of K, Ca, Mn, Fe, Cu, Zn, Rb, Sr, and Br in infusions of different Syrian medicinal plant species, namely anise (Anisum vulgare), licorice root (Glycyrrhiza glabra), and white wormwood (Artemisia herba-alba). (C) 2009 Elsevier B.V. All rights reserved
引用
收藏
页码:721 / 725
页数:5
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