Leaching Rates of Ten Heavy Metals in Tea

YANG Qin-zhan; CHEN Meng-jun; WEN Heng; LUO Han-jin

doi:10.19303/j.issn.1008-0384.2015.04.017

Volume 30 Issue 4

Apr. 2015

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YANG Qin-zhan, CHEN Meng-jun, WEN Heng, LUO Han-jin. Leaching Rates of Ten Heavy Metals in Tea[J]. Fujian Journal of Agricultural Sciences, 2015, 30(4): 406-410. doi: 10.19303/j.issn.1008-0384.2015.04.017

Citation:

YANG Qin-zhan, CHEN Meng-jun, WEN Heng, LUO Han-jin. Leaching Rates of Ten Heavy Metals in Tea[J]. Fujian Journal of Agricultural Sciences, 2015, 30(4): 406-410. doi: 10.19303/j.issn.1008-0384.2015.04.017

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Leaching Rates of Ten Heavy Metals in Tea

doi: 10.19303/j.issn.1008-0384.2015.04.017

1. Agricultural Products Quality & Safety Supervision & Testing Center of Huizhou in Guangdong Province;
2. Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters,Ministry of Education,South China University of Technology

Received Date: 2014-11-18
Publish Date: 2015-04-18

Abstract

Abstract

With ICP-AES method,heavy metals in tea infusion,including Cd,Cr,Cu,Fe,Ni,Pb,Ti,Co,Mn and Zn,were detected under different tea soaking conditions.The results showed that suitable conditions of soaking tea could effectively control heavy metal intake within minimum range.Leaching rates of heavy metals were compared between different tea kinds with same soaking conditions or among three soaking conditions for same tea.Resultsshowed that the leaching rates of heavy metals in tea were related to the source of heavy metals.Heavy metals in tea originated from the soil were difficult to leach,whereas heavy metals originated from atmospheric precipitation or introduced during the machining process were easier to leach.
- tea,
- tea infusion,
- heavy metal,
- leaching rate,
- source

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References(27)

References

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