红河州不同地区野山茶中微量元素的对比研究

doi:10.3964/j.issn.1000-0593(2008)11-2699-04

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Abstract In the present paper, the authors prepared all the samples by the same method, and optimized the work conditions for flame qtomic absorption spectrometry. FAAS was applied to determine the trace elements, such as Pb, Cr, Cd, Cu, Zn, Hg, Se etc, in Elsholtzia bodineri Vaniot. from Mengzi, Shiping, Mile and Jianshui located in Honghe state. The method is simple, rapid and accurate, and allows simultaneous determination of many elements. The recoveries were in the range of 98.7%-116.4%，and RSD was 0.07%-1.69%. The contents of Pb, Cd and Hg were 53.47, 6.03 and 7.68 μg·g^-1,respectively, in the sample from Jianshui, and were higher than those from other areas. The content of Mn was the highest, and was higher in Mengzi than in other areas, and the average content in the four samples was 913.48 μg·g^-1,which was higher than the content in the soil. Fe is the semi-microelement whose average content in Elsholtzia bodineri Vaniot. from Honghe was 688.46 μg·g^-1,the high-to-low content sequence of Fe in terms of location was Mengzi, Mile, Shiping and Jianshui. The average content of Zn was 116.64 μg·g^-1,and the highest one was from Shiping. But we did not obtain the data of Se in the Elsholtzia bodineri Vaniot. from Honghe state by AAS, and did not detect Hg in samples from Shiping and Mile. The content of the detected elements in Mengzi’s sample had the sequence as follows; Mn>Fe>Zn>Pb>Cu>Cr>Cd>Hg>Se, while the sequence was Mn>Fe>Zn>Pb>Cu>Hg>Cd>Cr>Se in the sample of Jianshui, Mn>Fe>Zn>Pb>Cu>Cd>Cr>Hg>Se in Shiping, and Fe>Mn>Zn>Pb> Cu>Cd> Cr>Hg>Se in Mile. The results show that the content of the trace elements is high, especially, Mn, Fe and Zn, in Elsholtzia bodineri Vaniot. in Honghe. Therefore, Elsholtzia bodineri Vaniot., which can be used as drug or beverage, is worth exploitation.

Key words：Trace elements;Elsholtzia bodineri Vaniot.;Comparative;FAAS

Received: 2007-05-10 Accepted: 2007-08-20

ZTFLH:

O657.3

Corresponding Authors: LIU Wei E-mail: hhusci@163.com

Cite this article:

ZHANG Ju-cheng,LIU Wei,YI Zhong-zhou, et al. Comparative Study on Trace Elements in Elsholtzia bodineri Vaniot. from Honghe by FAAS[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2008, 28(11): 2699-2702.

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https://www.gpxygpfx.com/EN/10.3964/j.issn.1000-0593(2008)11-2699-04 OR https://www.gpxygpfx.com/EN/Y2008/V28/I11/2699

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