| 裂隙岩体爆破破碎阻力特性分析 |
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| 引用本文： | 张拔川 李功伯. 裂隙岩体爆破破碎阻力特性分析[J]. 现代地质, 1997, 11(3): 354-357 |
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| 作者姓名： | 张拔川 李功伯 |
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| 作者单位： | China University of Geosciences，Beijing，100083 |
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| 摘 要： | 对裂隙岩体的爆破破碎阻力特性进行了研究，提出了裂隙岩体爆破阻力矢量的概念和研究方法。以单元结构体作为主要研究对象，建立了爆破阻力矢量与岩体实际阻力矢量的关系模型。作为一种研究方法，它对裂隙岩体的爆破破碎的理论研究及施工技术的研究具有一定的实际意义。
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| 关 键 词： | 裂隙岩体 爆破阻力矢量 单元结构体 |
STUDY ON DETERMINATION OF MICROAMOUNTS OF ZIRCONIUM AND HAFNIUM IN GEOLOGICAL SAMPLES BY ICP AES |
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| Wang Yingbin. STUDY ON DETERMINATION OF MICROAMOUNTS OF ZIRCONIUM AND HAFNIUM IN GEOLOGICAL SAMPLES BY ICP AES[J]. Geoscience of Geosciences, 1997, 11(3): 354-357 |
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| Authors: | Wang Yingbin |
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| Abstract: | A method for determining the contents of elements Zr and Hf in geological samples is introduced. In 2% tartaric acid medium, interfering elements are absorbed on a cation exchange resin. Zirconium and hafnium are determined directly at 343 823nm and 264 141nm by using ICP AES method. The detection limit is 0 5×10 -6 for Zr and 0 4×10 -6 for Hf. This method is simple and rapid. It was used to analyze some geochemical standard reference samples with satisfactory results. |
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| Keywords: | zirconium hafnium cation exchange ICP AES method |
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