Disturbance of the determination of aldehydes and ketones: Structural elucidation of degradation products derived from the reaction of 2,4-dinitrophenylhydrazine (DNPH) with ozone
| العنوان: | Disturbance of the determination of aldehydes and ketones: Structural elucidation of degradation products derived from the reaction of 2,4-dinitrophenylhydrazine (DNPH) with ozone |
|---|---|
| المؤلفون: | Gabor Lörinci, Antonius Kettrup, Norbert Hertkorn, Istvan Gebefügi, Stefan Achatz |
| المصدر: | Fresenius' Journal of Analytical Chemistry. 364:141-146 |
| بيانات النشر: | Springer Science and Business Media LLC, 1999. |
| سنة النشر: | 1999 |
| مصطلحات موضوعية: | chemistry.chemical_classification, Ozone, Ketone, Chromatography, Free-radical reaction, 2,4-Dinitrophenylhydrazine, Biochemistry, Aldehyde, Chemical reaction, chemistry.chemical_compound, chemistry, Reagent, Organic chemistry, Derivatization |
| الوصف: | None of the reaction products of ozone and DNPH immobilized on solid phase support have been identified yet. However, they can interfere with the determination of carbonyl compounds in ozone containing air when analysis is performed by sampling and derivatization with DNPH coated silica cartridges. To elucidate the structure of these compounds, DNPH silica cartridges were treated with synthetic air containing defined concentrations of ozone and eluted with acetonitrile. The products were characterized by HPLC-UV/Vis and nuclear magnetic resonance (NMR) spectroscopy. Three of the degradation products were identified as 2,4-dinitrophenol, 2,4-dinitroaniline and 1,3-dinitrobenzene. The identification was confirmed by comparison with commercially available standard compounds. The other elutable products were characterized as substituted aromatic compounds. The formation of all characterized products is consistent with a radical mechanism which has been previously discussed in the literature. |
| تدمد: | 1432-1130 0937-0633 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::fcee20dbc88da2f33123d3dd76a787b5 https://doi.org/10.1007/s002160051313 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........fcee20dbc88da2f33123d3dd76a787b5 |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 14321130 09370633 |
|---|