| 重量法测定灰岩中的二氧化碳 |
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| 引用本文： | 张 健,范宝磊. 重量法测定灰岩中的二氧化碳[J]. 中国无机分析化学, 2012, 2(1): 34-36 |
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| 作者姓名： | 张 健 范宝磊 |
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| 作者单位： | 贵州省地矿局103地质队分析测试中心 贵州 铜仁554300;中国科学院 西北高原生物研究所,青海 西宁810008; 中国科学院 研究生院 北京100049 ;贵州铜仁学院 生物科学与化学系 贵州 铜仁554300 |
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| 基金项目： | 贵州省教育厅重点项目（黔教科2008096） |
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| 摘 要： | 采用重量法对灰岩中的二氧化碳进行测定。首先用酸分解试样,在载气作用下,产生的二氧化碳被吸收液完全吸收,最后用重量法间接求出二氧化碳的含量。实验结果准确度高,矿石中的硫不干扰测定,可测定0.1%以上的二氧化碳。不经过复杂的气体净化步骤,操作准确、简单、易行,可用于灰岩中二氧化碳的测定。
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| 关 键 词： | 灰岩 二氧化碳 重量法 |
| 收稿时间： | 2011-10-15 |
| 修稿时间： | 2011-10-31 |
Determination of Carbon Dioxide in Limestone by Gravimetric Method |
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| ZHANG Jian and FAN Baolei. Determination of Carbon Dioxide in Limestone by Gravimetric Method[J]. Chinese Journal of Inorganic Analytical Chemistry, 2012, 2(1): 34-36 |
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| Authors: | ZHANG Jian and FAN Baolei |
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| Affiliation: | 2,3,4(1.The instrument analysis center of 103 geological team of Guizhou Geology and Mineral Resources Bureau,Tongren,Guizhou,554300,China;2.The Northwest Institute of Plateau Biology,the Chinese Academy of Sciences,Xining,Qinghai,810008,China;3.The Graduate University of the Chinese Academy Science,Beijing 100049,China;4.Biological Sciences and Chemistry Department of Tongren College,Tongren,Guizhou 554300,China) |
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| Abstract: | In this paper the amount of carbon dioxide in limestone was determined by gravimetric method. The carbon dioxide, which was generated when limestone was desolved in acid, was introduced to the solution by carrier gas. Then the weight of the carbon dioxide in the solutions was measured by the gravimetric method and was used to calculate the content of carbon dioxide in limestone. The method eliminates the interference from sulfur element. This method does not need complex gas purification steps and is simple and accurate, which is suitable for determining carbon dioxide in limestone with minimum concentration of 0.1% . |
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| Keywords: | limestone carbon dioxide gravimetric method |
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