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A simple new method for the determination of ammonium isotopes by gas chromatography-mass spectrometry

文献类型：期刊论文

作者Wei Guo1,2; Ran Jiang1,2; Zhang Xinfeng1,2; Jun Li3
刊名ANALYTICAL METHODS
出版日期2021-06-21
页码7
ISSN号1759-9660
DOI10.1039/d1ay00456e
通讯作者Ran Jiang(458750084@qq.com) ; Jun Li(junli@gig.ac.cn)
英文摘要We report a new method for the determination of naturally abundant N-15 (concentration of N-15) in ammonium (NH4+) in water samples, including drinking water, surface water, groundwater, and seawater, by gas chromatography-mass spectrometry (GC-MS) based on the isotopic analysis of hexamethylenetetramine. The resulting product was obtained by the reaction between ammonium ions and formaldehyde under the given conditions (pH = 6.0, 40 degrees C, 30 min). Then, the species was extracted (with chloroform) and concentrated at pH = 8.5 and measured by GC-MS. The results showed that the relative standard deviation (RSD) of the delta N-15 measurements was less than 10% and the recoveries were in the range of 71-118% (n = 5). The limit of detection was 20 mmol l(-1). Compared to the previous method, the present method is simple and highly suitable to be used as a routine method for the N-15/N-14 analysis of NH4+.
WOS关键词DIFFUSION METHOD ; NATURAL-WATERS ; FRESH-WATERS ; NITROGEN ; NITRATE ; ADAPTATION ; DELTA-N-15 ; MARINE ; RATIOS ; CHINA
资助项目Open Fund of the Chinese Academy of Sciences[SKLOG201919] ; Open Fund of the Chinese Academy of Sciences[SKLOG202007] ; Natural Science Foundation of Guangdong Province, China[2017A030313329] ; Natural Science Foundation of China[51409287]
WOS研究方向Chemistry ; Food Science & Technology ; Spectroscopy
语种英语
WOS记录号WOS:000700905900001
出版者ROYAL SOC CHEMISTRY
资助机构Open Fund of the Chinese Academy of Sciences ; Natural Science Foundation of Guangdong Province, China ; Natural Science Foundation of China
源URL[http://ir.igsnrr.ac.cn/handle/311030/165757]  
专题中国科学院地理科学与资源研究所
通讯作者Ran Jiang; Jun Li
作者单位1.Pearl River Conservancy Commiss, Pearl River Inst Hydraul Res, Guangzhou 510610, Peoples R China
2.Chinese Acad Sci & Minist Water Resources, Key Lab Pearl River Estuarine Dynam & Associated, Guangzhou 510610, Peoples R China
3.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China
推荐引用方式
GB/T 7714		 Wei Guo,Ran Jiang,Zhang Xinfeng,et al. A simple new method for the determination of ammonium isotopes by gas chromatography-mass spectrometry[J]. ANALYTICAL METHODS,2021:7.
APA Wei Guo,Ran Jiang,Zhang Xinfeng,&Jun Li.(2021).A simple new method for the determination of ammonium isotopes by gas chromatography-mass spectrometry.ANALYTICAL METHODS,7.
MLA Wei Guo,et al."A simple new method for the determination of ammonium isotopes by gas chromatography-mass spectrometry".ANALYTICAL METHODS (2021):7.

入库方式： OAI收割

来源：地理科学与资源研究所

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