Disturbance of the determination of aldehydes and ketones:: Structural elucidation of degradation products derived from the reaction of 2,4-dinitrophenylhydrazine (DNPH) with ozone

被引：34

作者：

Achatz, S ^{[1
]}

Lörinci, G ^{[1
]}

Hertkorn, N ^{[1
]}

Gebefügi, I ^{[1
]}

Kettrup, A ^{[1
]}

机构：

[1] GSF Forschungszentrum Umwelt & Gesundheit, Inst Ecol Chem, D-85764 Neuherberg, Germany

来源：

FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 1999年 / 364卷 / 1-2期

关键词：

D O I：

10.1007/s002160051313

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

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.

引用

页码：141 / 146

页数：6

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