Coral Ba/Ca Analysis Using ICP-OES With an Ultrasonic Nebulizer


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Geochem. Geophys. Geosyst.22-8_e2021GC009646.pdf

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/83968

Title:	Coral Ba/Ca Analysis Using ICP-OES With an Ultrasonic Nebulizer
Authors:	Watanabe, Takaaki K. Browse this author
	Watanabe, Tsuyoshi Browse this author →KAKEN DB
	Ohmori, Kazuto Browse this author
	Yamazaki, Atsuko Browse this author
Keywords:	Ba
	Ca
	coral
	ICP-OES
	limnology
	oceanography
	ultrasonic nebulizer
Issue Date:	1-Aug-2021
Publisher:	American Geophysical Union
Journal Title:	Geochemistry geophysics geosystems
Volume:	22
Issue:	8
Start Page:	e2021GC009646
Publisher DOI:	10.1029/2021GC009646
Abstract:	The barium/calcium ratio (Ba/Ca) in coral skeletons has been used as a proxy to understand river floods and oceanic upwelling in the tropics and subtropics for the past centuries. Here, we establish a new method for Ba/Ca analysis using inductively coupled plasma optical emission spectrometry (ICP-OES), which has been widely used for coral proxy analyses and can save analysis time compared to other methods. We analyze Ba/Ca by combining an ultrasonic nebulizer with the intensity ratio calibration method to improve the signal intensity of Ba. Our method can determine Ba/Ca in samples with a Ca concentration of 9 mg/L with excellent analytical precision (<0.17 mu mol/mol) using ICP-OES.
Rights:	An edited version of this paper was published by AGU. Copyright 2021 American Geophysical Union.
Type:	article
URI:	http://hdl.handle.net/2115/83968
Appears in Collections:	理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 渡邊剛

OAI-PMH ( junii2 , jpcoar_1.0 )

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