| A method of the determination nitrate nitrogen (NO3--N) in high-salinity water samples | |
| Hu, Jing1; Zhuang, Zhi2; Pan, Mengyan2; Han, Tianhao2; Li, Yuliang2; Liu, Weiguo1 | |
| 通讯作者 | Li, Yuliang(yulianglee@hotmail.com) ; Liu, Weiguo(liuwg@toess.llqgac.cn) |
| 2022-03-01 | |
| 发表期刊 | CHEMICAL PAPERS
 |
| ISSN | 0366-6352 |
| 卷号 | 76期号:3页码:1739-1744 |
| 摘要 | The determination of nitrate nitrogen (NO3--N) is a key step in the pretreatment of nitrogen isotope determination, but how to determine NO3--N in high-salinity water samples simply and efficiently is always a difficult problem. A spectrophotometric method for the determination of nitrate is presented and verified in this paper. Samples with different salinity were added to determine the known concentration gradient of NO3--N. The results show that the nitrate content can be determined between 0.2 similar to 2.8 mg/L by ultraviolet-visible spectrophotometer (hereafter as UVS), and the relative error is about 10%. A standard curve of the same salinity should be attempted for a water sample with known salinity. Precon-Isotope Mass Spectrometry (hereafter as Precon-MS) was used to verify the determination of sample concentration by UVS, and the relative error was less than 8%. This paper presents a simple and efficient method for the determination of NO3--N in high-salinity water samples, which has made great progress in the determination of nitrate nitrogen in samples and provides a theoretical basis for the determination of nitrogen isotopes in the pretreatment process of water samples. |
| 关键词 | Ultraviolet-visible spectrophotometer NO3--N Nitrogen isotope delta N-15-NO3- |
| DOI | 10.1007/s11696-021-02007-w |
| 关键词[WOS] | ION CHROMATOGRAPHY ; FRESH-WATER ; SEAWATER ; NITRITE |
| 收录类别 | SCI ; SCI |
| 语种 | 英语 |
| 资助项目 | National Natural Science Foundation of China[41991252] ; State Key Laboratory of Loess and Quaternary Geology[SKLLQG1912] ; Central Higher Education Foundation of Chang'an University[300102290505] |
| WOS研究方向 | Chemistry |
| 项目资助者 | National Natural Science Foundation of China ; State Key Laboratory of Loess and Quaternary Geology ; Central Higher Education Foundation of Chang'an University |
| WOS类目 | Chemistry, Multidisciplinary |
| WOS记录号 | WOS:000754648100013 |
| 出版者 | SPRINGER INT PUBL AG |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ieecas.cn/handle/361006/17458 |
| 专题 | 现代环境研究室 |
| 通讯作者 | Li, Yuliang; Liu, Weiguo |
| 作者单位 | 1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China 2.Changan Univ, Sch Water & Environm, Xian 710054, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu, Jing,Zhuang, Zhi,Pan, Mengyan,et al. A method of the determination nitrate nitrogen (NO3--N) in high-salinity water samples[J]. CHEMICAL PAPERS,2022,76(3):1739-1744. |
| APA | Hu, Jing,Zhuang, Zhi,Pan, Mengyan,Han, Tianhao,Li, Yuliang,&Liu, Weiguo.(2022).A method of the determination nitrate nitrogen (NO3--N) in high-salinity water samples.CHEMICAL PAPERS,76(3),1739-1744. |
| MLA | Hu, Jing,et al."A method of the determination nitrate nitrogen (NO3--N) in high-salinity water samples".CHEMICAL PAPERS 76.3(2022):1739-1744. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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