| 不同表面石墨管测定比较及采用WPGT直接测定水系沉积物及煤飞灰中的钇 |
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| 引用本文： | 马怡载,程建国.不同表面石墨管测定比较及采用WPGT直接测定水系沉积物及煤飞灰中的钇[J].分析化学,1988(3). |
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| 作者姓名： | 马怡载 程建国 |
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| 作者单位： | 中国科学院环境化学研究所 北京(马怡载)，湖南师范大学化学系 长沙(程建国) |
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| 摘 要： | 本文采用自制的钨金属表面石墨管(WPGT)测钇,并与其它石墨管进行了比较。WPGT测钇灵敏度高,为PGT的340倍,重现性好,抗干扰能力强,可用于水系沉积物等样品中钇的直接测定。
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| 关 键 词： | 原子吸收光谱 原子化器 钇 |
COMPARATIVE STUDY ON SOME TUBULAR ATOMIZERS FOR DETERMINATION OF YTTRIUM WITH GRAPHITE FURNACE ATOMIC ABSORPTION SPECTROMETRY |
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| Ma Yizai.COMPARATIVE STUDY ON SOME TUBULAR ATOMIZERS FOR DETERMINATION OF YTTRIUM WITH GRAPHITE FURNACE ATOMIC ABSORPTION SPECTROMETRY[J].Chinese Journal of Analytical Chemistry,1988(3). |
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| Authors: | Ma Yizai |
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| Abstract: | Such a comparison was investigated with pyrolytic graphite coated tube(PGT), pyrolytic graphite tube lined with W and Ta(WTaPGT), and pyrolytic graphite tube lined with W(WPGT). The sensitivity, reproducibility, lifetime of atomizers, interference of the matrix on atomization of Y and memory effects were studied, The recoveries of Y in differentatrix were tabulated for comparison as well. Y in different samples such as sediment, coal fly ash was determined directly with WPGT. The sensitivity obtained with WPGT is 1. 7 times as high as that obtained with WTaPGT, and 340 times with PGT. With WPGT or WTaPGT the matrix studied have no interference on the determination of Y. The results of direct determination of Y in different samples are satisfactory. |
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| Keywords: | Yttrium Atomic absorption spectroscopy Atomizer |
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