| 催化激光热透镜光谱法测定南阳恐龙蛋化石中痕量铱 |
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| 引用本文： | 阎宏涛 杨胜科. 催化激光热透镜光谱法测定南阳恐龙蛋化石中痕量铱[J]. 高等学校化学学报, 1996, 17(10): 1544-1546 |
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| 作者姓名： | 阎宏涛 杨胜科 |
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| 作者单位： | 西北大学化学系, 西安, 710069 |
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| 基金项目： | 国家教育委员会优秀年轻教师基金 |
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| 摘 要： | 催化激光热透镜光谱法测定南阳恐龙蛋化石中痕量铱阎宏涛，杨胜科（西北大学化学系，西安，７１００６９）关键词恐龙蛋化石，热透镜光谱法，催化反应，痕量铱的测定近年来，地质学界对白垩－第三纪界线（Ｋ－Ｔ界线）全球性铱的异常给予极大的关注［１］．化石中痕量铱的...
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| 关 键 词： | 恐龙蛋化石 热透镜光谱法 催化反应 痕量铱的测定 |
| 收稿时间： | 1995-10-30 |
Studies on the Determination of Trace Iridium in Fossil of Dinosaurian Eggs with Catalytic LTLS |
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| YAN Hong-Tao,YANG Sheng-Ke. Studies on the Determination of Trace Iridium in Fossil of Dinosaurian Eggs with Catalytic LTLS[J]. Chemical Research In Chinese Universities, 1996, 17(10): 1544-1546 |
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| Authors: | YAN Hong-Tao YANG Sheng-Ke |
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| Affiliation: | Department of Chemistry, Northwest University, Xi'an, 710069 |
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| Abstract: | A new method for the determination of trace iridium in fossil of dinosaurian eggs with catalytic laser thermal lensing spectrometry is presented in this paper.The method is based on the kinetic reaction in which trace iridium catalyzes the decomposition of hydrogen peroxide in basic condition and on the determination of the magneson Ⅱfading speed.The detection limit is 5.2×10-12 g/mLfor iridium.The linear range of the calibration curve is 0.2～35 ng/mLof iridium and correlation coeffcient is 0.9974.The method has been applied to the determination of the trace iridium in fossil of dinosaurian eggs in Nanyang region,China. |
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| Keywords: | Fossil of dinosaurian eggs Thermal lensing spectrometry Catalytic reaction Detemination of trace iridium |
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