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| 用三氧化铬-硫酸溶剂对黑色页岩铼-锇定年方法初探 | |
| 引用本文： | 刘华,屈文俊,王英滨,任静,杜安道,Jan,Pasav,孙文静. 用三氧化铬-硫酸溶剂对黑色页岩铼-锇定年方法初探[J]. 岩矿测试, 2008, 27(4): 245-249 |
| 作者姓名： | 刘华 屈文俊 王英滨 任静 杜安道 Jan Pasav 孙文静 |
| 作者单位： | 1. 国家地质实验测试中心,北京,100037;中国地质大学(北京)材料科学与化学工程学院,北京,100083 2. 国家地质实验测试中心,北京,100037 3. 中国地质大学(北京)材料科学与化学工程学院,北京,100083 4. 山东省第三地质矿产勘查院,山东,烟台,264000 |
| 基金项目： | 国家自然科学基金项目资助 |
| 摘 要： | 讨论了铼-锇同位素稀释法测定黑色页岩年龄的溶样方式,比较了王水和不同温度下CrO3-H2SO4的Carius管溶样技术,通过改进流程将铼空白控制在10pg之内,并结合高灵敏度的电感耦合等离子体质谱分析手段,初步研究建立了一种用CrO3-H2SO4溶剂准确测定黑色页岩年龄的方法。 |
| 关 键 词： | 同位素稀释等离子体质谱法 铼-锇定年 黑色页岩石 流程空白 三氧化铬-硫酸溶剂 温度 |
Primary Study on Re-Os Isotopic Dating of Black Shale Using CrO3H2SO4-Carius Tube-Inductively Coupled Plasma Mass Spectrometry System |
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| Jan Paava. Primary Study on Re-Os Isotopic Dating of Black Shale Using CrO3H2SO4-Carius Tube-Inductively Coupled Plasma Mass Spectrometry System[J]. Rock and Mineral Analysis, 2008, 27(4): 245-249 | |
| Authors: | Jan Paava |
| Affiliation: | Jan Pa(s)ava |
| Abstract: | Different sample digestion systems for Re-Os dating of black shale were studied.The sample digestion effect of aqua regia-Carius tube digestion system and CrO3-H2SO4-Carius tube digestion system at different digestion temperature were compared.The results from the study show that the CrO3-H2SO4-Carius tube digestion system provides the lower total procedure blank value for rhenium(less than 10 pg) than aqua regia system.Combined with high sensitive inductively coupled plasma-mass spectrometric(ICP-MS) analytical technique,a new CrO3-H2SO4-Carius tube digestion-ICPMS determination system for Re-Os dating of black shale has been established. |
| Keywords: | isotope dilution-inductively coupled plasma mass spectrometry Re-Os dating black shale total procedure blank CrO3-H2SO4 temperature |
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