Analytical methods for determination of high water concentrations in obsidian glasses

Авторы: Stepanov O.V., Chertkova N.V., Plechov P.Yu, Persikov E.S., Bukhtiyarov P.G.
Журнал: Experiment in GeoSciences
Том: 22
Номер: 1
Год издания: 2016
Первая страница: 78
Последняя страница: 80
Аннотация: Abstract. In order to prepare primary standards for confocal Raman spectroscopic measurements, obsidian glasses with water contents ranging from 4 to 10 wt.% H2O were synthesized in the internally heated pressure vessel and piston-cylinder apparatus. Their water content was independently determined by attenuated total reflectance FTIR spectroscopy and Karl Fisher titration. Raman spectra of the glasses contain distinct bands in 3200-3700 cm-1 and 200-1200 cm-1 regions and the ratio of bands integrated intensities has a clear dependence on total water content. Therefore, synthesized glasses can be used as spectroscopic standards for Raman measurements of high water contents in the glasses of rhyolitic composition.
Добавил в систему: Бухтияров Павел Гаврилович

	ИСТИНА	Войти в систему Регистрация
	ИСТИНА ИНХС РАН
	Главная Поиск Статистика О проекте Помощь

ИСТИНА