Simultaneous Determination of Hydrazine, Methylhydrazine, and 1,1-Dimethylhydrazine by High-Performance Liquid Chromatography with Pre- and Post-Column Derivatization by 5-Nitro-2-Furaldehyde
- Autores: Amosov A.1, Ul’yanovskii N.1, Kosyakov D.1, Shpigun O.2
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Afiliações:
- Lomonosov Northern (Arctic) Federal University
- Moscow State University
- Edição: Volume 73, Nº 5 (2018)
- Páginas: 497-503
- Seção: Articles
- URL: https://journals.rcsi.science/1061-9348/article/view/183039
- DOI: https://doi.org/10.1134/S1061934818050027
- ID: 183039
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Resumo
Approaches to the chromatographic determination of 1,1-dimethylhydrazine and two main products of its degradation (hydrazine and methylhydrazine) on their simultaneous presence are proposed using derivatization by 5-nitro-2-furaldehyde and multi-wavelength spectrophotometric detection of the formed derivatives in the visible spectral region. A combination of preliminary derivatization with separation in the reversed-phase HPLC mode and also ion-chromatographic separation with post-column derivatization allowed us to reach the limits of detection for analytes lower than 1 μg/L and to determine 1,1-dimethylhydrazine at the level of the maximum permissible concentration without preconcentration. The developed approaches were tested on an acid extract of a sample of peat bog soil collected at the place of impact of the first stage of a carrier rocket. The identity of the results obtained by different methods and the high level of soil pollution by hydrazines are shown.
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Sobre autores
A. Amosov
Lomonosov Northern (Arctic) Federal University
Email: d.kosyakov@narfu.ru
Rússia, Arkhangelsk, 163002
N. Ul’yanovskii
Lomonosov Northern (Arctic) Federal University
Email: d.kosyakov@narfu.ru
Rússia, Arkhangelsk, 163002
D. Kosyakov
Lomonosov Northern (Arctic) Federal University
Autor responsável pela correspondência
Email: d.kosyakov@narfu.ru
Rússia, Arkhangelsk, 163002
O. Shpigun
Moscow State University
Email: d.kosyakov@narfu.ru
Rússia, Moscow, 119991