A New Approach to Establishing the Number of Impuritiesin a High-Purity Substance (Isopropanol) Based on a CombinedUse of Chromadistillation and Atmospheric-PressurePhotochemical Ionization

Авторы: Revelskya I.A., Yashin Yu S., Chepelyansky D.A., Samokhin A.S., Revelsky A.I.
Журнал: Journal of Analytical Chemistry
Том: 77
Номер: 14
Год издания: 2022
Издательство: Maik Nauka/Interperiodica Publishing
Местоположение издательства: Russian Federation
Первая страница: 1767
Последняя страница: 1769
DOI: 10.1134/S1061934822140076
Аннотация: The determination of the number of components in complex mixtures is a difficult task, especiallywhen the compositions of the mixtures are unknown. Even gas chromatography/mass spectrometry withelectron ionization does not always solve this problem. Such test samples may include high-purity organicsubstances. The possibility of the detection of unknown impurities in such samples with information on theirmolecular masses increases significantly when chromadistillation is used in combination with atmosphericpressurephotochemical ionization mass spectrometry. In this paper, possibilities of using this method fordetecting the number of unknown impurities in a high-purity substance (isopropanol) are considered. Twiceas many impurities as specified in the GOST (State Standard) 9805-84 are found.
Добавил в систему: Ревельский Александр Игоревич

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