离子色谱法测定冰川雪冰样品中阴离子

doi:10.11867/j.issn.1001-8166.2011.03.0319

地球科学进展 ›› 2011, Vol. 26 ›› Issue (3): 319 -324. doi: 10.11867/j.issn.1001-8166.2011.03.0319

离子色谱法测定冰川雪冰样品中阴离子

崔晓庆 ^1,2，任贾文 ¹，王晓香 ¹，秦翔 ^1,2

1.冰冻圈科学国家重点实验室,中国科学院寒区旱区环境与工程研究所,甘肃兰州730000;
2．祁连山冰川与生态环境综合观测研究站，中国科学院寒区旱区环境与工程研究所，甘肃兰州730000

收稿日期:2010-04-14 修回日期:2010-09-17 出版日期:2011-03-10
通讯作者: 崔晓庆 E-mail:xiaoqing@lzb.ac.cn
基金资助:
国家重点基础研究发展计划项目“我国冰冻圈动态过程及其对气候水文和生态的影响机理与适应对策”（编号：2007CB411503）;科技部科技基础性专项项目“中国冰川资源及其变化调查”（编号：2006FY110200）;冰冻圈科学国家重点实验室自主课题（编号：SKLCS09-04）资助.

Analysis of Uncertainty in Detecting Anion from Ice and Snow by Ion Chromatography

Cui Xiaoqing ^1,2, Ren Jiawen ¹, Wang Xiaoxiang ¹, Qin Xiang ^1,2

1.Qilian Shan Station of Glaciology and Ecologic Environment, Lanzhou730000, China;
2.State Key Laboratory of Cryospheric Science, CAREERI, CAS, Lanzhou730000, China

Received:2010-04-14 Revised:2010-09-17 Online:2011-03-10 Published:2011-03-10

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雪冰内化学成分的记录为全球变化的各个方面，如气候变化、生物地球化学循环、人类活动、地质和宇宙事件等诸多科学命题的研究提供了直接或间接依据，这些化学成分记录主要包括雪冰内的稳定氢氧同位素、重金属、微粒、气溶胶、黑炭、离子等。雪冰内的离子化学成分的研究在冰川雪冰化学研究中具有重要的地位。为了更为准确地反映冰川雪冰内的记录信息，对离子的分析测试技术的要求就更高。采用离子色谱法测定冰川雪冰中阴离子的含量，并对测定的不确定度进行了分析，找出了影响冰川雪冰样品中阴离子不确定度的因素，并对不确定度进行了评估。应用不确定度评定理论，计算得出测试冰川雪冰样品阴离子的不确定度，其结果如实地反映了测量的置信度和准确度。由此提高冰川雪冰样品痕量离子测试的准确度，该方法对提高冰川雪冰内痕量离子测试的准确度研究具有重要意义。

关键词: 雪冰, 离子色谱法, 不确定度, 阴离子, 评定

The research of the climate and the environmental information in snow and ice can reveal the climate and environmental characteristics of modern times to contemporary, and even reveal that over the last hundreds thousand years, but also through a combination of modern meteorological records, to improve the capacity of predicting the future climate change. Snow and ice plays an important role in the studies of the past global changes; the ice core research is also an extremely important area in studying the past global changes. The record of chemical composition in snow and ice provide a direct or indirect basis for global change research, such as climate change, biogeochemical cycle. Human activities, geological and cosmic events and many other scientific proposition′s study. These records include the stable isotopes, heavy metals, particulates, aerosols, black carbon, ion. The ion chemical study of snow and ice has an important position. To analyze the uncertainty in detecting the anion in snow and ice by ion chromatography, find out the factors which influence the uncertainty , evaluate the uncertainty and give out the uncertainty of evaluation which faithfully reflects metrical credibility and accuracy.

Key words: Snow and ice, Ion chromatography, Uncertainty, Chlorine, Assessment.

中图分类号:

P343.6

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