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中国无机分析化学:2020,10(2):28-33
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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
高少鹏, 邬光剑, 徐柏青, 于正良, 刘晓明, 石燕云
(1.中国科学院青藏高原环境变化与地表过程重点实验室;2.中国科学院大陆碰撞与高原隆升重点实验室)
Comparison of Several Methods for Determination of Low-Content Water Soluble Metal Ions in Snow and Ice in Tibetan Plateau
GAO Shaopeng, WU Guangjian, XU Baiqing, YU Zhengliang, LIU Xiaoming, SHI Yanyun
(1.Key Laboratory of Tibetan Environment Changes and Land Surface Processes,CAS,Beijing;2.Key Laboratory of Continental Collision and Plateau Uplift,CAS,Beijing)
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投稿时间:2019-08-20    修订日期:2019-10-09
中文摘要: 本研究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+,Ca2+,Mg2+四种水溶金属离子,寻求最佳分析方案。分析结果对比发现,ICP-OES在K+测量中存在困难,而IC和ICP-MS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比IC测量值明显偏高的现象。因此,除IC外,ICP-MS也是检测青藏高原雪冰样品中水溶金属离子的有效手段,其测试速度更快,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。
中文关键词: 雪冰  水溶金属离子  分析方法
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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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)
引用文本:
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.
GAO Shaopeng,WU Guangjian,XU Baiqing,YU Zhengliang,LIU Xiaoming,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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