Luo Hedong, Wang Wenwei, Wang Tingting, Hong Huarong, Zhou Na
Xiamen Center for Disease Control and Prevention, Xiamen 361021, China.
Wei Sheng Yan Jiu. 2014 Nov;43(6):953-8.
To investigate the composition and distribution pattern of rare earth elements in the teas from Fujian province.
A total of 145 samples of nine varieties of the teas were collected from their plantation fields and markets in Fujian province. The concentrations of La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu and Y in the samples were determined by inductively coupled plasma-mass spectrometry (ICP-MS).
The concentrations of total REEs, light REEs (LREEs) and heavy REEs (HREEs) in the teas were 2.483, 1.764, 0.720 mg/kg, respectively. The LREE was dominant with the highest concentration of Ce. The distribution pattern of the REE contents in the teas and corresponding plantation soils were similar.
After the chondrite-nomalized distribution treatment, it was found that the REEs in the Fujian teas had a similar pattern with those of the soils in the Fujian province and Mainland China, and also with those in the green tea from Jiangsu province. However, the high concentrations of REEs in some Fujian teas should be paid with more attention and investigation.
研究福建省茶叶中稀土元素的组成及分布模式。
从福建省的茶园和市场共采集了9个品种的145份茶叶样品。采用电感耦合等离子体质谱法（ICP-MS）测定样品中La、Ce、Pr、Nd、Sm、Eu、Gd、Tb、Dy、Ho、Er、Tm、Yb、Lu和Y的含量。
茶叶中稀土元素总量、轻稀土元素（LREEs）和重稀土元素（HREEs）的含量分别为2.483、1.764、0.720 mg/kg。轻稀土元素占主导地位，其中Ce含量最高。茶叶及其相应种植土壤中稀土元素含量的分布模式相似。
经球粒陨石标准化分布处理后发现，福建茶叶中的稀土元素模式与福建省及中国大陆土壤中的稀土元素模式相似，也与江苏省绿茶中的稀土元素模式相似。然而，部分福建茶叶中稀土元素的高含量应予以更多关注和研究。
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