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Flame Atomic Absorption Spectrometry Determination of the Content of Trace Elements in Giant Knotweed

Li Zhu

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Abstract

Ca,Mg,Zn,Cu,Mn,Fe,Pb,Cr and Cd in polygonum were determined by flame atomic aboorption spectrometry.The results showed that polygonum contained trace amounts of calcium and magnesium,which were 2466μg/g and 789.1μg/g,respectively.The zinc and iron contents were high,and the copper,lead and chromium contente were low.Cadmium was not detected.The recovery was 83.47% ~103.0%.The relative standard deviation(RSD)ranged from 4.23% ~ 16.72%.The method is simple,fast and accurate,and it gives satisfactory results.

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What this paper is about

Ca,Mg,Zn,Cu,Mn,Fe,Pb,Cr and Cd in polygonum were determined by flame atomic aboorption spectrometry.The results showed that polygonum contained trace amounts of calcium and magnesium,which were 2466μg/g and 789.1μg/g,respectively.The zinc and iron contents were high,and the copper,lead and chromium contente were low.Cadmium was not detected.The recovery was 83.47% ~103.0%.The relative standard deviation(RSD)ranged from 4.23% ~ 16.72%.The method is simple,fast and accurate,and it gives satisfactory results.

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Available abstract

Ca,Mg,Zn,Cu,Mn,Fe,Pb,Cr and Cd in polygonum were determined by flame atomic aboorption spectrometry.The results showed that polygonum contained trace amounts of calcium and magnesium,which were 2466μg/g and 789.1μg/g,respectively.The zinc and iron contents were high,and the copper,lead and chromium contente were low.Cadmium was not detected.The recovery was 83.47% ~103.0%.The relative standard deviation(RSD)ranged from 4.23% ~ 16.72%.The method is simple,fast and accurate,and it gives satisfactory results.

Key concepts: Chemistry, Cadmium, Zinc, Copper, Magnesium, Chromium, Atomic absorption spectroscopy, Relative standard deviation

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