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Progress in Earth and Planetary Science
Fig. 1 | Progress in Earth and Planetary Science

Fig. 1

From: Water and magmas: insights about the water solution mechanisms in alkali silicate melts from infrared, Raman, and 29Si solid-state NMR spectroscopies

Fig. 1

Relationship between the area of 1H MAS NMR sidebands, which arise from 1H-1H dipolar interaction in H2Omol species, and the concentration of the latters as measured by IR spectroscopy in the LS4 (plain squares) and NS4 (open circles) glasses. On the left, examples of the 4500 and 5200 cm−1 IR combination bands, assigned to OH and H2Omol species, respectively, and of one 1H NMR sideband are shown for the LS4 glass containing 17.6 nom. mol% water. On the FTIR example, the plain line represents the experimental spectrum and the dashed line is a polynomial baseline defining the background (see text)

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