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本文采用新型载体氯酸钾,与试样以等比例混合,在氩、氧比为4:1,流速为5L/min的旋流气室内,采用φ4×2×0.5mm的颈式电极,直流19A预然5Sec,曝光80Sec,在pGS-2摄谱仪上利用负三级光谱,线色散倒数为0.093nm/mm下摄谱,同时测定了氧化钇中痕量稀土杂质,可测定镱0.1×10~(-6);钆、镝、铒,铥1×10~(-6);钬、镥3×10~(-6);铽10×10~(-6)。相对均方误差为9×22％,比常用的方法有较低的检测限。
In this paper, a new carrier potassium chlorate was mixed with the sample in equal proportion. In a cyclone chamber with a 4: 1 ratio of argon to oxygen and a flow rate of 5 L / min, a neck electrode of φ4 × 2 × 0.5 mm was used. 5Sec and exposure to 80Sec. Negative-third-order spectroscopy was used on pGS-2 spectrograph, and the reciprocal of chromatic dispersion was 0.093nm / mm. Meanwhile, the trace rare earth impurities in yttrium oxide were determined. -6); gadolinium, dysprosium, erbium, 铥 1 × 10 -6; holmium, 镥 3 × 10 -6; terbium 10 × 10 -6. The relative mean square error is 9 × 22%, which has a lower detection limit than the commonly used methods.