Using Laser Desorption/Ionization to Study Heteropoly Acids

Авторы: Minenkova I.V., Emel’yanov A.M., Tarkhanova I.G., Buryak A.K.
Журнал: Russian Journal of Physical Chemistry A
Том: 98
Номер: 4
Год издания: 2024
Издательство: Pleiades Publishing, Ltd
Местоположение издательства: Road Town, United Kingdom
Первая страница: 742
Последняя страница: 750
Аннотация: The fragmentation of phosphomolybdic acid (PMA) is studied via laser desorption and ionization.It is found that during laser desorption and ionization, acid crystals tend to form cluster-type species of (MoO3)n and HPO3⋅(MoO3)n. Species with the general formula HPO2⋅(MoO3)n and containing Mo5+ and Mo6+ are identified in the mode of positive ion detection,. Hydrated H3PMo12O40⋅MoO3⋅4H2O molecularions are detected in mass spectrometric studies of PMA solutions with a 2,5-dihydroxybenzoic acid matrix.Studying the effect parameters of laser desorption and ionization have on the information content of mass spectra show that peak intensity, laser power, and number of shots are generally in a symbate relationship. The peak intensity depends on the laser power more than on the number of shots.
Добавил в систему: Тарханова Ирина Геннадиевна

	ИСТИНА	Войти в систему Регистрация
	Интеллектуальная Система Тематического Исследования НАукометрических данных
	Главная Поиск Статистика О проекте Помощь

ИСТИНА