Determination of Impurities in High-Purity Methyl Methacrylate by Chromadistillation Coupled with Atmospheric Pressure Photochemical Ionization Mass Spectrometry

Авторы: Revelsky I.A., Yashin Yu S., Chepelyansky D.A., Samokhin A.S., Revelsky A.I.
Журнал: Journal of Analytical Chemistry
Том: 77
Номер: 9
Год издания: 2022
Издательство: Maik Nauka/Interperiodica Publishing
Местоположение издательства: Russian Federation
Первая страница: 1194
Последняя страница: 1196
DOI: 10.1134/S1061934822070097
Аннотация: The determination of impurities in high-purity substances is an urgent task. A combination ofchromadistillation with atmospheric pressure photoionization mass spectrometry can help in its solution. Acombination of these methods ensures recording mass spectra of impurities contained in high-purity organicsubstances without separating them from the main component. At that, ions of the main component, formedas a result of atmospheric-pressure photoionization, act as a reagent substance for the desired impurities inthe atmospheric pressure photochemical ionization mode. It is possible to choose conditions under which thenumber of peaks recorded in the mass spectrum of a mixture corresponds to the number of mixture components, and each peak corresponds to M+ or MH+ ions of the mixture component. The information obtainedis the number of impurities in the test substance (in this work, in methyl methacrylate) and their integermolecular weights.
Добавил в систему: Ревельский Александр Игоревич

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