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用原子吸收光谱法测定了２３个茶叶样品中ｃａ、Ｍｇ、Ｆｅ、Ｍｎ、Ｃｕ、Ｚｎ的含量，结果表明茶叶的功效与上述元素有一定的关联。
The contents of Ca, Mg, Fe, Mn, Cu, Zn in 23 tea samples were determined by atomic absorption spectrometry. The results showed that the efficacy of tea was related to the above elements.