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	CHARACTERIZATION OF ARSENIC UPTAKE IN LIVING PTERIS VITTATA L
	Lei M.; Yang J.
	2014
关键词	X-ray absorption near-edge structure synchrotron radiation arsenic Pteris vittata atomic fluorescence spectrometry speciation in situ X-ray fluorescence synchrotron-radiation contaminated soil indian mustard metal uptake hyperaccumulator phytoremediation damage accumulation speciation fern
英文摘要	Phytoremediation of arsenic contamination using the hyperaccumulator Pteris vittata is an active area of research. However, the mechanism for the uptake of arsenic in P. vittata remains unclear, due to the absence of methods to monitor this process. This study utilized synchrotron radiation X-ray fluorescence (XRF) spectroscopy and X-ray absorption near-edge structure (XANES) to continuously observe in situ arsenic in living P. vittata. The results showed that the reduction of arsenic(V) to arsenic(III) occurred simultaneously with an increase in frond arsenic, suggesting the reduction affected arsenic uptake. In situ XRF measurements of living P. vittata accurately characterized arsenic uptake but in situ XANES could not be used on live plants without using methods to prevent radiation damage. A novel approach is reported to investigate the changes of elements in plants.
出处	Instrumentation Science & Technology
卷	42
期	6
页	667-677
收录类别	SCI
语种	英语
ISSN号	1073-9149
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/29573]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Lei M.,Yang J.. CHARACTERIZATION OF ARSENIC UPTAKE IN LIVING PTERIS VITTATA L. 2014.

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