Improved alkaline fusion method for B isotope and concentration measurements of silicate materials

doi:10.1039/d3ja00278

	Improved alkaline fusion method for B isotope and concentration measurements of silicate materials
	Cai, Yue 5,6; Ruan, Ting 4; Li, Ye 5,6; Li, Baichan 5,6; Zhang, Weiwei 5,6; Li, Zhenghui 3; Wei, Haizhen 2; Rasbury, E. Troy 1
刊名	JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
	2023-09-13
页码	9
ISSN号	0267-9477
DOI	10.1039/d3ja00278
通讯作者	Cai, Yue(cai@nigpas.ac.cn)
英文摘要	Boron (B) is one of the most powerful tracers of fluid-mediated processes. However, challenges still exist for B analysis of silicate materials with the main difficulty in sample dissolution. Cai et al. (2021) reported a novel alkaline fusion method for boron isotope analysis using solid sodium peroxide and glassy carbon crucibles. Here we report a modified and improved version of this method using hydrated sodium peroxide and silver crucibles, which permits a lower flux-to-sample mass ratio (FSMR) (3 : 1), relatively low fusion temperature of 710 & DEG;C, and the use of cheaper silver crucibles. This modified method achieves complete sample dissolution while being safer and more efficient as it removes the need for grinding fresh sodium peroxide solid into powder. The B blank of the hydrated sodium peroxide solution can be determined more accurately and further reduced through chromatography. In addition to the improvements in the alkaline fusion procedure, we also propose a new procedure to dissolve the fusion cake, which greatly reduces reagent usage and minimizes the procedural blank as a result. Using these improved techniques, we analyzed B concentrations and B isotope compositions of eight silicate international standards. The results are consistent with published data within analytical uncertainties. Combined with the one-step chromatography using the Amberlite & REG; IRA-743 B-specific resin to purify B and the Neptune plus & REG; MC-ICP-MS for isotopic analysis, this method generates a batch of B concentration and isotope data within 48 hours with minimal need to handle hazardous chemicals. This safe and efficient method will greatly speed up research using B isotopes on silicate materials. Boron (B) is one of the most powerful tracers of fluid-mediated processes. This improved method permits safe, precise, and accurate measurement of B isotope and B concentration through a single dissolution.
资助项目	Research Foundation of the National Engineering Research Center for Gas Hydrate Exploration and Development Innovation Team Project[2022GMGSCXYF410010]
WOS关键词	BORON ISOTOPE ; ROCK SAMPLES ; BORIC-ACID ; FRACTIONATION ; EXCHANGE ; CONSTRAINTS ; SYSTEMATICS ; BEHAVIOR ; ORIGIN
WOS研究方向	Chemistry ; Spectroscopy
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:001066891000001
资助机构	Research Foundation of the National Engineering Research Center for Gas Hydrate Exploration and Development Innovation Team Project
内容类型	期刊论文
源URL	[http://ir.nigpas.ac.cn/handle/332004/42736]
专题	中国科学院南京地质古生物研究所
通讯作者	Cai, Yue
作者单位	1.SUNY Stony Brook, Dept Geosci, Stony Brook, NY 11794 USA 2.Nanjing Univ, Dept Earth Sci & Engn, State Key Lab Mineral Deposits Res, Nanjing 210023, Peoples R China 3.East China Univ Technol, State Key Lab Nucl Resources & Environm, Nanchang 330013, Jiangxi, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironment, Nanjing 210008, Peoples R China 6.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China
推荐引用方式 GB/T 7714	Cai, Yue,Ruan, Ting,Li, Ye,et al. Improved alkaline fusion method for B isotope and concentration measurements of silicate materials[J]. JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY,2023:9.
APA	Cai, Yue.,Ruan, Ting.,Li, Ye.,Li, Baichan.,Zhang, Weiwei.,...&Rasbury, E. Troy.(2023).Improved alkaline fusion method for B isotope and concentration measurements of silicate materials.JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY,9.
MLA	Cai, Yue,et al."Improved alkaline fusion method for B isotope and concentration measurements of silicate materials".JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY (2023):9.