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激光-多接收等离子体质谱测定石笋的Mg/Ca比

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何学贤, 朱祥坤, 唐索寒, 杨淳, 蔡俊军, 李世珍, 李志红. 2005: 激光-多接收等离子体质谱测定石笋的Mg/Ca比, 质谱学报, 26(z1): 75-76. doi: 10.3969/j.issn.1004-2997.2005.z1.038
引用本文: 何学贤, 朱祥坤, 唐索寒, 杨淳, 蔡俊军, 李世珍, 李志红. 2005: 激光-多接收等离子体质谱测定石笋的Mg/Ca比, 质谱学报, 26(z1): 75-76. doi: 10.3969/j.issn.1004-2997.2005.z1.038
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HE Xue-xian, ZHU Xiang-kun, TANG Suo-han, YANG Chun, CAI Jun-jun, LI Shi-zhen, LI Zhi-hong. 2005: Determination of Mg/Ca Ratio of Stalagmite by Laser Multicollector Inductively Coupled Plasma Mass Spectrometry, Journal of Chinese Mass Spectrometry Society, 26(z1): 75-76. doi: 10.3969/j.issn.1004-2997.2005.z1.038
Citation: HE Xue-xian, ZHU Xiang-kun, TANG Suo-han, YANG Chun, CAI Jun-jun, LI Shi-zhen, LI Zhi-hong. 2005: Determination of Mg/Ca Ratio of Stalagmite by Laser Multicollector Inductively Coupled Plasma Mass Spectrometry, Journal of Chinese Mass Spectrometry Society, 26(z1): 75-76. doi: 10.3969/j.issn.1004-2997.2005.z1.038
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激光-多接收等离子体质谱测定石笋的Mg/Ca比

  • 国土资源部同位素地质重点实验室,中国地质科学院地质研究所,北京,100037

Determination of Mg/Ca Ratio of Stalagmite by Laser Multicollector Inductively Coupled Plasma Mass Spectrometry

  • 摘要: A method for determining Mg/Ca of stalagmite by LA-MC-ICPMS is studied. 24Mg/44Ca (Mass 22, intensity of 44Ca2+ , collected by ion counting and mass 24, intensity of 24Mg+, collected by Faraday cup) ratios were measured in replace of Mg/Ca ratios. Both diameter of laser sampling spot and laser moving increment were 20 μm. The curve of Mg/Ca vs. distance directly was obtained. The result indicates that relative Mg/Ca ratios changed from 0.5 to 2.0 in this stalagmite and it is enough to reflect environmental factors act.
    Abstract: A method for determining Mg/Ca of stalagmite by LA-MC-ICPMS is studied. 24Mg/44Ca (Mass 22, intensity of 44Ca2+ , collected by ion counting and mass 24, intensity of 24Mg+, collected by Faraday cup) ratios were measured in replace of Mg/Ca ratios. Both diameter of laser sampling spot and laser moving increment were 20 μm. The curve of Mg/Ca vs. distance directly was obtained. The result indicates that relative Mg/Ca ratios changed from 0.5 to 2.0 in this stalagmite and it is enough to reflect environmental factors act.
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  • 刊出日期:  2005-12-30

激光-多接收等离子体质谱测定石笋的Mg/Ca比

  • 国土资源部同位素地质重点实验室,中国地质科学院地质研究所,北京,100037

摘要: A method for determining Mg/Ca of stalagmite by LA-MC-ICPMS is studied. 24Mg/44Ca (Mass 22, intensity of 44Ca2+ , collected by ion counting and mass 24, intensity of 24Mg+, collected by Faraday cup) ratios were measured in replace of Mg/Ca ratios. Both diameter of laser sampling spot and laser moving increment were 20 μm. The curve of Mg/Ca vs. distance directly was obtained. The result indicates that relative Mg/Ca ratios changed from 0.5 to 2.0 in this stalagmite and it is enough to reflect environmental factors act.

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