| 热电离质谱铀系法测定碳酸盐标样 |
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| 引用本文： | 王兆荣,彭子成.热电离质谱铀系法测定碳酸盐标样[J].岩矿测试,1998,17(4):268-270. |
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| 作者姓名： | 王兆荣 彭子成 |
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| 作者单位： | 中国科学技术大学地球和空间科学系,第三世界科学院中国科学技术大学地球科学和天文学高级研究中心,合肥,230026 |
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| 基金项目： | 国家自然科学基金,中国科学院重大科技项目 |
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| 摘 要： | 用高精度热电离质谱（ＴＩＭＳ）铀系法测定碳酸盐标样的年龄，测定结果与α谱仪铀系法进行比较，铀含量和年龄值均吻合。方法对Ｕ的回收率可达９５％，Ｔｈ为９２％。ＴＩＭＳ铀系法具有样品用量少、测试时间短、精度高的优点。
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| 关 键 词： | 热电离质谱 铀系法 碳酸盐标样 |
| 修稿时间： | 1997-10-16 |
Determination of Age for Standard Carbonate Samples by TIMS with Uranium-series Age Method |
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| Wang Zhaorong,Peng Zicheng,Sun Weidong,Ni Shoubin.Determination of Age for Standard Carbonate Samples by TIMS with Uranium-series Age Method[J].Rock and Mineral Analysis,1998,17(4):268-270. |
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| Authors: | Wang Zhaorong Peng Zicheng Sun Weidong Ni Shoubin |
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| Abstract: | The age of stalagmite was determined by high precise thermal ionization mass spectrometry (TIMS) with uranium series age method. Uranium content and age of the standard carbonate were in agreement with standard values. The recoveries for U and Th are 95% and 92% respectively. The method has advantages of rapid, high precision and less sample consumed. |
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| Keywords: | thermal ionization mass spectrometry (TIMS) uranium series age method carbonate |
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