Methods: We have tested the levels of copper, iron, zinc and calcium of hair and peripheral-blood t cell subpopulation in 80 RRI patients.

方法：检测80例RRI患儿头发铜、铁、锌、钙水平，以及外周血t细胞亚群，同时选择5 0例健康儿童作对照。

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The contents of copper and iron in silver-zinc cell material were determined by air-acetylene flame atomic-absorption spectroscopy.

采用空气-乙炔火焰原子吸收光谱法连续测定银锌电池材料用无甘油玻璃纸中铜、铁含量。

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