| 硝酸盐中15N和18O的测试新技术及其在地下水氮污染防治研究中的进展 |
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| 引用本文： | 周爱国,蔡鹤生,刘存富.硝酸盐中15N和18O的测试新技术及其在地下水氮污染防治研究中的进展[J].地质科技情报,2001,20(4):94-98,102. |
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| 作者姓名： | 周爱国 蔡鹤生 刘存富 |
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| 作者单位： | 中国地质大学, |
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| 基金项目： | 国家自然科学基金，40072081， |
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| 摘 要： | 针对硝酸盐对地下水污染的严重性，介绍了用CaO除去CO2和H2O的测定氮同位素比值的燃烧等方法和和利用AgNO3 C(石墨）生成CO2的测定NO^-3中氧同位素比值的燃烧法，研究了用^15N和^18O同位素分析地下水中NO^-3来源和判断硝化作用和反硝化作用的发生机理。
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| 关 键 词： | 硝酸盐 氮同位素 氧同位素 地下水 防治 硝化作用 |
| 文章编号： | 1000-7849(2001)04-0094-05 |
A NEW ANALYTICAL TECHNIQUE OF ISOTOPE 15 N AND 18 O IN NO-3 AND THE DEVELOPMENT IN N CONTAMINATIVE STUDY OF GROUNDWATER |
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| Zhou Ai guo,Cai He sheng,Liu Cun fu.A NEW ANALYTICAL TECHNIQUE OF ISOTOPE 15 N AND 18 O IN NO-3 AND THE DEVELOPMENT IN N CONTAMINATIVE STUDY OF GROUNDWATER[J].Geological Science and Technology Information,2001,20(4):94-98,102. |
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| Authors: | Zhou Ai guo Cai He sheng Liu Cun fu |
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| Abstract: | Nitrate has become one of the most common groundwater contaminants.This paper presents a combustion tube method for measuring nitrogen isotope ratios using calcium oxide for total removal of carbon dioxide and water and a combustion method of CO 2 produced by AgNO 3+C for measuring oxygen isotope ratios. It also introduces nitrate sources of NO - 3 in groundwater and the mechanism of the occurrence for nitrification and denitrification. |
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| Keywords: | nitrate 15 N 18 O |
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