摘要
黑碳作为生物质与化石燃料不完全燃烧的产物,在气候变化、健康、环境及碳循环等多个领域具有重要影响。长期以来,δ^(13)C和Δ^(14)C分析被广泛用于黑碳来源解析,黑碳的有效分离与纯化是准确测定其同位素的关键。本文系统梳理了当前基于δ^(13)C和Δ^(14)C分析的黑碳分离与检测技术,详述了各方法的发展进程和优缺点。其中,经改进的热光法具有较小的相对误差和较高的重复性,成为快速测定黑碳δ^(13)C和Δ^(14)C的有效手段;而催化加氢法则以其稳定性强、不受基质影响的优点,被认为是黑碳分离的理想方法。本文同时指出,为了评判不同测试技术的可靠性,急需开发适用于各类方法的黑碳δ^(13)C和Δ^(14)C标准物质;另外,提升各方法的标准化程度,增强不同实验室间数据的可比性亦至关重要。
As a product of incomplete combustion of biomass and fossil fuels,black carbon has an important impact on many fields such as climate change,health,environment and carbon cycle.For a long time,δ^(13)C andΔ^(14)C analysis have been widely used in black carbon source analysis,and the effective separation and purification of black carbon is the key to accurately determine its isotopes.This article systematically sorts out the current black carbon separation and detection technologies based onδ^(13)C andΔ^(14)C analysis,and details the development process and advantages and disadvantages of each method.Among them,the improved thermo-optical method has become an effective means for rapid determination of black carbonδ^(13)C andΔ^(14)C due to its small relative error and high repeatability;and the catalytic hydrogenation method is considered to be an ideal method for black carbon separation due to its strong stability and no influence of the matrix.The article also points out that in order to judge the reliability of different testing techniques,it is urgent to develop black carbonδ^(13)C andΔ^(14)C standard substances suitable for various methods;in addition,it is also crucial to improve the standardization of each method and enhance the comparability of data between different laboratories.These insights are intended to promote the further improvement of black carbon research methods and provide valuable references for future research in related fields.
作者
易州
尹希杰
王吉苹
YI Zhou;YIN Xijie;WANG Jiping(School of Environmental Science and Engineering,Xiamen University of Technology,Xiamen 361024,China;Analysis and Testing Center of the Third Ocean Research Institute of the Ministry of Natural Resources,Xiamen 361005,China)
出处
《同位素》
2025年第3期292-303,共12页
Journal of Isotopes
基金
中国地质调查局舟山海洋地质灾害野外科学观测研究站开放基金资助项目(ZSORS-22-10)
自然资源部第三海洋研究所基本科研业务费项目(海三科2024010,2024014)。
