Use of ion and ion-pair chromatography with mass spectrometric detection to determine unsymmetrical dimethylhydrazine and its transformation products |
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| Authors: | A. D. Smolenkov I. A. Rodin R. S. Smirnov O. G. Tataurova O. A. Shpigun |
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| Affiliation: | 1. Department of Chemistry, Division of Analytical Chemistry, Moscow State University, Moscow, Russia
2. Institute of Physical Chemistry and Electrochemistry, Moscow, Russia
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| Abstract: | The conditions of the simultaneous determination of unsymmetrical dimethylhydrazine (UDMH) and products of its transformation in aqueous solutions with ion and ion-pair chromatography and mass-spectrometric detection in the electrospray ionization mode have been selected. It has been shown that up to seven components may be determined within the limits of detection at the ??g/L level. The application of the developed methods to the analysis of solutions with an initial UDMH concentration of 500 mg/L that had undergone spontaneous oxidation by atmospheric oxygen has been demonstrated. The accumulation of formic acid dimethylhydrazide, 1-methyl-1,2,4-triazole and dimethylamine has been found. |
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