QUANTITATIVE MEASUREMENTS OF WATER AND CA RBON CONCENTRATIONS IN NATURAL BASALTIC GLASSES BY INFRARED-SPECTROSCOPY .2. WATER

Citation
N. Jendrzejewski et al., QUANTITATIVE MEASUREMENTS OF WATER AND CA RBON CONCENTRATIONS IN NATURAL BASALTIC GLASSES BY INFRARED-SPECTROSCOPY .2. WATER, Comptes rendus de l'Academie des sciences. Serie II. Sciences de la terre et des planetes, 322(9), 1996, pp. 735-742
Citations number
19
Categorie Soggetti
Geosciences, Interdisciplinary
ISSN journal
12518050
Volume
322
Issue
9
Year of publication
1996
Pages
735 - 742
Database
ISI
SICI code
1251-8050(1996)322:9<735:QMOWAC>2.0.ZU;2-M
Abstract
Quantitative analysis by infrared spectroscopy of dissolved hydroxyl g roups in a silicate glass require a calibration of the IR molar absorp tion coefficient at the O-H bond fundamental stretching frequency. We present a new determination of this coefficient obtained on a consiste nt set of 28 samples representative of MORE composition and containing their characteristic water concentration (570-3,400 ppm H2O), which a lso guarantees the absence of dissolved molecular water. It is demonst rated that our value of 78+/-1 I.mol(-1).cm(-1) is much more precise a nd appropriate for MORE than previous determinations.