IEECAS OpenIR  > 加速器质谱中心
An improved method of ion exchange for nitrogen isotope analysis of water nitrate
Xing, M (Xing, Meng)[1,2]; Liu, WG (Liu, Weiguo)[1,3]
2011-02-07
发表期刊ANALYTICA CHIMICA ACTA
卷号686期号:1-2页码:107-114
文章类型期刊论文
摘要

Nitrate nitrogen and oxygen isotopes have been widely used to trace the nitrogen biogeochemical cycle by identifying NO(3)(-) sources. An improved method of anion exchange was developed to measure delta(15)N-NO(3)(-) in fresh water by continuous-flow elemental analyzer/isotope ratio mass spectrometry (EA-IRMS). We used a custom-built exchange resin column, a peristaltic pump and the oven-drying method in our experiments. Consequently, the amount of Ag(2)O used as a neutralizer was reduced, time was saved, and operation became simpler than before. Meanwhile, analytical precision remained identical to previous studies. KNO(3) solutions were prepared at 0.2, 5 and 25 mg-N L(-1) from KNO(3) standard salt (delta(15)N = +6.27 parts per thousand), and the average delta(15)N values of the solutions after having been absorbed on and subsequently stripped from anion columns were +6.62 +/- 0.22 parts per thousand (n = 6), +6.38 +/- 0.09 parts per thousand (n = 6), and +6.26 +/- 0.07 parts per thousand (n = 6), respectively. In addition, the "natural" water sample delta(15)N-NO(3)(-) showed consistency in comparison to standards, and the mean standard deviation by the different approaches was 0.08 parts per thousand. Accordingly, by these improvements the anion exchange resin technique is demonstrated to be more suitable for measuring delta(15)N in NO(3)(-) than original techniques. (C) 2010 Elsevier B.V. All rights reserved.

关键词Nitrate Nitrogen isotope Ion exchange Water 15N tracing approach
DOI10.1016/j.aca.2010.11.051
收录类别SCI
语种英语
引用统计
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/10275
专题加速器质谱中心
通讯作者Liu, WG (Liu, Weiguo)[1,3]
作者单位1.State Key Laboratory of Loess and Quaternary Geology, IEE, CAS, Xi’an, 710075, China;
2.Graduate School of Chinese Academy of Sciences, Beijing, 100039, China;
3.Xi’an Jiaotong University, Xi’an, 710049, China
推荐引用方式
GB/T 7714
Xing, M ,Liu, WG . An improved method of ion exchange for nitrogen isotope analysis of water nitrate[J]. ANALYTICA CHIMICA ACTA,2011,686(1-2):107-114.
APA Xing, M ,&Liu, WG .(2011).An improved method of ion exchange for nitrogen isotope analysis of water nitrate.ANALYTICA CHIMICA ACTA,686(1-2),107-114.
MLA Xing, M ,et al."An improved method of ion exchange for nitrogen isotope analysis of water nitrate".ANALYTICA CHIMICA ACTA 686.1-2(2011):107-114.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
An improved method o(371KB)期刊论文作者接受稿开放获取CC BY-NC-SA请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Xing, M (Xing, Meng)[1,2]]的文章
[Liu, WG (Liu, Weiguo)[1,3]]的文章
百度学术
百度学术中相似的文章
[Xing, M (Xing, Meng)[1,2]]的文章
[Liu, WG (Liu, Weiguo)[1,3]]的文章
必应学术
必应学术中相似的文章
[Xing, M (Xing, Meng)[1,2]]的文章
[Liu, WG (Liu, Weiguo)[1,3]]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。