Liu Jin, Yang Jian-jun, Liang Xin-qiang, Hu Yong-feng, Shi Ji-yan, Chen Ying-xu
Institute of Environmental Science and Technology, Zhejiang University, Hangzhou 310029, China.
Ying Yong Sheng Tai Xue Bao. 2011 Oct;22(10):2757-64.
Solid state phosphorous is an important phosphorus speciation controlling the phosphorous bioavailability and mobility in the environment. Synchrotron-based X-ray absorption near-edge structure (XANES) spectroscopy, with its unique advantage of being a non-destructive method in identifying the local chemical information of target element at molecular level in situ, has become one of the frontier technologies for characterizing the speciation of chemical substances and clarifying the microscopic mechanisms of chemical reactions, attracting extensive attention in the field of environmental chemistry. This paper briefly introduced the basic theory of phosphorus XANES spectroscopy, summarized the applications of XANES spectroscopy in the researches of solid state phosphorus speciation in minerals, soils, and organic fertilizers, and analyzed the challenges and prospects of the applications of XANES spectroscopy in identifying the solid state phosphorus speciation in the environmental samples. It was pointed out that XANES spectroscopy should combine with other microscopic spectroscopic techniques and macroscopic analytical methods, complementing each other, to provide a comprehensive and effective technical support for the research of the speciation characterization and transformation mechanisms of phosphorus in the environment.
固态磷是控制环境中磷生物有效性和迁移性的一种重要磷形态。基于同步辐射的X射线吸收近边结构（XANES）光谱，具有在分子水平原位识别目标元素局部化学信息的无损方法这一独特优势，已成为表征化学物质形态和阐明化学反应微观机制的前沿技术之一，在环境化学领域引起了广泛关注。本文简要介绍了磷XANES光谱的基本理论，总结了XANES光谱在矿物、土壤和有机肥料中固态磷形态研究中的应用，并分析了XANES光谱在识别环境样品中固态磷形态应用方面的挑战与前景。指出XANES光谱应与其他微观光谱技术和宏观分析方法相结合，相互补充，为环境中磷形态特征和转化机制的研究提供全面有效的技术支持。
