Spectrophotometric determination of hydrazine, methylhydrazine, and 1,1-dimethylhydrazine with preliminary derivatization by 5-nitro-2-furaldehyde
| Autor: | Nikolay V. Ul'yanovskii, Dmitry S. Kosyakov, Oleg A. Shpigun, A. V. Ladesov, Yu. G. Khabarov, A. S. Amosov |
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| Rok vydání: | 2017 |
| Předmět: |
Detection limit
Analyte Methylhydrazine Chromatography medicine.diagnostic_test Chemistry Furaldehyde 010401 analytical chemistry Hydrazine 010402 general chemistry 01 natural sciences 0104 chemical sciences Analytical Chemistry chemistry.chemical_compound Spectrophotometry medicine Solubility Derivatization |
| Zdroj: | Journal of Analytical Chemistry. 72:171-177 |
| ISSN: | 1608-3199 1061-9348 |
| DOI: | 10.1134/s106193481702006x |
| Popis: | 5-Nitro-2-furaldehyde, a new derivatizing agent for the spectrophotometric determination of hydrazine, methylhydrazine, and 1,1-dimethylhydrazine is proposed. It is characterized by high solubility in water and by a substantial difference in the positions of absorption bands of the formed colored derivatives. The kinetics of the reaction of analyte derivatization is studied, and reaction conditions (pH 5, concentration of derivatizing agent 2 mM, 60° C, duration 40 min) are optimized. The limits of detection are 5, 3, and 1.5 μg/L for hydrazine, methylhydrazine, and 1,1-dimetlhydrazine, respectively. A possibility of the spectrophotometric determination of analytes in their simultaneous presence using the Firordt method is shown. The developed approach is successfully applied to the analysis of polluted peat bog soil selected at a place of impact of the first step of a carrier rocket. |
| Databáze: | OpenAIRE |
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