| 青藏高原雪冰样品中低含量水溶金属离子分析方法对比研究 |
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| 引用本文： | 高少鹏,邬光剑,徐柏青,于正良,刘晓明,石燕云.青藏高原雪冰样品中低含量水溶金属离子分析方法对比研究[J].中国无机分析化学,2020,10(2):28-33. |
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| 作者姓名： | 高少鹏 邬光剑 徐柏青 于正良 刘晓明 石燕云 |
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| 作者单位： | 中国科学院青藏高原环境变化与地表过程重点实验室,中国科学院青藏高原环境变化与地表过程重点实验室,中国科学院青藏高原环境变化与地表过程重点实验室,中国科学院青藏高原环境变化与地表过程重点实验室,中国科学院大陆碰撞与高原隆升重点实验室,中国科学院青藏高原环境变化与地表过程重点实验室 |
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| 基金项目： | 国家杰出青年科学基金,国家自然科学基金项目（面上项目，重点项目，重大项目） |
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| 摘 要： | 从采自青藏高原阿汝和古里雅冰川的两支冰芯中选取31个样品,分别用三种仪器对比分析K^+、Na^+、Ca^2+、Mg^2+四种水溶金属离子,寻求最佳分析方案。分析结果对比发现,电感耦合等离子体发射光谱(ICP-OES)法在K+测量中存在困难,而离子色谱(IC)法和电感耦合等离子体质谱(ICP-MS)法均能够满足要求,且分析结果具有高度的一致性,四种离子的相关系数(R2)均在0.97以上,且并未出现ICP-MS法比IC法测量值明显偏高的现象。因此,除IC法外,ICP-MS法也是检测青藏高原雪冰样品中水溶金属离子的有效手段,其测定速度更快,且可以同时进行微、痕量元素检测,适用于大批量冰芯样品的快速分析。
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| 关 键 词： | 雪冰 水溶金属离子 分析方法 |
| 收稿时间： | 2019/8/20 0:00:00 |
| 修稿时间： | 2019/10/9 0:00:00 |
Comparison of Several Methods for Determination of Low-Content Water Soluble Metal Ions in Snow and Ice in Tibetan Plateau |
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| GAO Shaopeng,WU Guangjian,XU Baiqing,YU Zhengliang,LIU Xiaoming and SHI Yanyun.Comparison of Several Methods for Determination of Low-Content Water Soluble Metal Ions in Snow and Ice in Tibetan Plateau[J].Chinese Journal of Inorganic Analytical Chemistry,2020,10(2):28-33. |
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| Authors: | GAO Shaopeng WU Guangjian XU Baiqing YU Zhengliang LIU Xiaoming and SHI Yanyun |
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| Institution: | Key Laboratory of Tibetan Environment Changes and Land Surface Processes,CAS,Beijing,Key Laboratory of Tibetan Environment Changes and Land Surface Processes,CAS,Beijing,Key Laboratory of Tibetan Environment Changes and Land Surface Processes,CAS,Beijing,Key Laboratory of Tibetan Environment Changes and Land Surface Processes,CAS,Beijing,Key Laboratory of Continental Collision and Plateau Uplift,CAS,Beijing,Key Laboratory of Tibetan Environment Changes and Land Surface Processes,CAS,Beijing |
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| Abstract: | In this study, 31 samples were selected from two ice cores collected from Aru and Guriya glaciers in the TP, and four water-soluble metal ions, K+, Na+, Ca2+ and Mg2+, were analyzed and compared with these three instruments to seek for the best analysis scheme.The results show that IC and ICP-MS can both meet the requirements except ICP-OES, especially in K+ analysis. The results were highly consistent, with the correlation coefficients (R2) all above 0.97 and there is no evidence that the measured values from ICP-MS are higher than that from IC. Therefore, in addition to IC, ICP-MS is also an effective method to determine water-soluble metal ions in snow and ice samples from the TP. Meanwhile, the analysis speed of ICP-MS is much faster than IC, and micro and trace elements can also be determined at the same time, which means ICP-MS is very suitable for the rapid analysis of large quantities of ice core samples. |
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| Keywords: | Snow and ice Water soluble metal ions Analysis method |
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