DocumentCode
3345585
Title
Notice of Retraction
Evaluation of Trace Element Levels of Some Medicinal Herbs in China
Author
Wenxiu Fan ; Fangkun Zhu ; Li Qu ; Xinzheng Li
Author_Institution
Sch. of Chem. & Chem. Eng., Henan Inst. of Sci. & Technol., Xinxiang, China
fYear
2011
fDate
10-12 May 2011
Firstpage
1
Lastpage
3
Abstract
Notice of Retraction
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
The concentrations of eight trace elements (Mg, Fe, Mn, Cu, Zn, Cr, Cd and Pb) in twelve kinds of medicinal herbs collected from China were determined by inductively coupled plasma atomic emission spectrometry after microwave digestion. Among all determined elements, magnesium was found to be the domination elemental ion as compared with other trace elements in the investigated herbs. The concentration of these trace elements were observed in the range of 525-5585, 70.5-375, 3.37-277, 0.44-14.8, 15.3-113, 0.68-8.06, 0.11-1.04, 0.25-6.48 μg·g-1 for magnesium, iron, manganese, copper, zinc, chromium, cadmium and lead. The levels of Cd in P. communic, B. chinense and C. deltoidea were found to be higher than legal limits. The accuracy and precision were verified by certified reference material, and the relative standard deviations were found below 10 %.
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
The concentrations of eight trace elements (Mg, Fe, Mn, Cu, Zn, Cr, Cd and Pb) in twelve kinds of medicinal herbs collected from China were determined by inductively coupled plasma atomic emission spectrometry after microwave digestion. Among all determined elements, magnesium was found to be the domination elemental ion as compared with other trace elements in the investigated herbs. The concentration of these trace elements were observed in the range of 525-5585, 70.5-375, 3.37-277, 0.44-14.8, 15.3-113, 0.68-8.06, 0.11-1.04, 0.25-6.48 μg·g-1 for magnesium, iron, manganese, copper, zinc, chromium, cadmium and lead. The levels of Cd in P. communic, B. chinense and C. deltoidea were found to be higher than legal limits. The accuracy and precision were verified by certified reference material, and the relative standard deviations were found below 10 %.
Keywords
atomic emission spectroscopy; cadmium; chromium; contamination; drugs; iron; lead; magnesium; manganese; zinc; B. chinense; C. deltoidea; Cd; China; Cr; Cu; Fe; Mg; Mn; P. communic; Pb; Zn; cadmium; chromium; copper; inductively coupled plasma atomic emission spectrometry; iron; lead; magnesium; manganese; medicinal herbs; microwave digestion; trace element level evaluation; zinc; Copper; Iron; Lead; Manganese; Materials; Zinc;
fLanguage
English
Publisher
ieee
Conference_Titel
Bioinformatics and Biomedical Engineering, (iCBBE) 2011 5th International Conference on
Conference_Location
Wuhan
ISSN
2151-7614
Print_ISBN
978-1-4244-5088-6
Type
conf
DOI
10.1109/icbbe.2011.5781522
Filename
5781522
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