本文已被:浏览 1146次 下载 808次
投稿时间:2019-08-20 修订日期:2019-10-09
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。
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.
文章编号: 中图分类号: 文献标志码:
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.
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.