【摘要】 <正> 固体悬浮液进样,石墨炉原子吸收法直接测定高纯稀土氧化物中的微量钙,迄今尚未见有公开报导。该法具有灵敏度高、空白低、操作简便、快速准确的优点。我们采用该法测定了高纯氧化镧、氧化钇、氧化镥中的微量钙,结果令人满意。实验部份1.仪器及操作条件180-80型Zeeman原子吸收光谱仪056型双笔记录仪,日立普通石墨管和钙空心阳极灯,上海611型加热磁力搅拌更多还原

【Abstract】 A new method which uses direct sampling of solid uspension is described by the determination trace calcium in pure rare earth oxides. The method is simpler, higher sensitive, lower blank and betler reproducibility then other. The detection limit is 2ppm. The results obtained using this method agreed well with those obtained using flame atomic absorption.更多还原