Determination of Heavy Metal Elements in Farm Products Taros and Agricultural Soil by Inductively Coupled Plasma-Optical Emission Spectrometry and Assessment

Can Cao; Hua Ye; Guo Hui Chen; Li Na He

doi:10.4028/www.scientific.net/AMR.233-235.1132

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 233-235Determination of Heavy Metal Elements in Farm...

Determination of Heavy Metal Elements in Farm Products Taros and Agricultural Soil by Inductively Coupled Plasma-Optical Emission Spectrometry and Assessment

Abstract:

This study was designed to determine the heavy metal concentrations in soils and food crops and estimate the potential health risks of metals to polluted food crops and soil, so agricultural soil for the cultivation and taro were main objects of study, taro were taken in the HNO₃-H₂O₂ wet digestion, while soil were taken to HCl-HNO₃-HF-HClO₄ wet digestion by (ICP-OES),then coments and analysis on the samples were carried out by comparing with their limits of relative state standards. The analytical results indicate that for all of the analyzed elements the relative standard deviations (RSD) are 0.9-4.9% and the recoveries of most elements are in the range of 96.84-104.96%. Zn, As, Cd and other contents in soil samples were detectable beyond their limits of state standards, while heavy metals contents in the investigated samples were found at different polluted levels. Cd, Cr, As, Zn, Cu in taros also exceeded the national standard. It was found that there are enrichment of heavy metals in taro. It is concluded that the present techniques are suitable for the routine determination of heavy metals concentration in the food crops-soil systems.

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Periodical:

Advanced Materials Research (Volumes 233-235)

Pages:

1132-1135

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.233-235.1132

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Online since:

May 2011

Authors:

Can Cao, Hua Ye, Guo Hui Chen, Li Na He

Keywords:

Heavy Metal, ICP-OES, Pollution, Soil, Taro

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