Calibration of a reflectance FTIR method for determination of dissolved CO2 concentration in rhyolitic glasses

Gordon Moore; Andrew Chizmeshya; Paul F. McMillan

doi:10.1016/S0016-7037(00)00447-6

Calibration of a reflectance FTIR method for determination of dissolved CO₂ concentration in rhyolitic glasses

Gordon Moore, Andrew Chizmeshya, Paul F. McMillan

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27 Scopus citations

Abstract

A technique based upon infrared reflectance spectroscopy is developed as an alternative to the Fourier transform infrared (FTIR) transmission method for the quantitative measurement of dissolved molecular carbon dioxide in aluminosilicate glasses. The technique has the advantage that only a single sample surface need be polished, and no thickness measurement is necessary. The reflectance spectrum is analyzed by Kramers-Kronig relations or classical oscillator analysis to yield the optical constants and the absorption coefficient at 2350 cm^-1, due to the asymmetric stretching (v₃) vibration of molecular CO₂. The value obtained is in excellent agreement with values obtained by the transmission FTIR technique for a suite of rhyolitic glasses. For practical application of the method to rhyolites, an empirical correlation is developed between the normalized change in reflectance at 2350 cm^-1 and the CO₂ content, up to ~0.40 wt%. Copyright (C) 2000 Elsevier Science Ltd.

Original language	English (US)
Pages (from-to)	3571-3579
Number of pages	9
Journal	Geochimica et Cosmochimica Acta
Volume	64
Issue number	20
DOIs	https://doi.org/10.1016/S0016-7037(00)00447-6
State	Published - 2000

ASJC Scopus subject areas

Geochemistry and Petrology

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10.1016/S0016-7037(00)00447-6

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title = "Calibration of a reflectance FTIR method for determination of dissolved CO2 concentration in rhyolitic glasses",

abstract = "A technique based upon infrared reflectance spectroscopy is developed as an alternative to the Fourier transform infrared (FTIR) transmission method for the quantitative measurement of dissolved molecular carbon dioxide in aluminosilicate glasses. The technique has the advantage that only a single sample surface need be polished, and no thickness measurement is necessary. The reflectance spectrum is analyzed by Kramers-Kronig relations or classical oscillator analysis to yield the optical constants and the absorption coefficient at 2350 cm-1, due to the asymmetric stretching (v3) vibration of molecular CO2. The value obtained is in excellent agreement with values obtained by the transmission FTIR technique for a suite of rhyolitic glasses. For practical application of the method to rhyolites, an empirical correlation is developed between the normalized change in reflectance at 2350 cm-1 and the CO2 content, up to ~0.40 wt%. Copyright (C) 2000 Elsevier Science Ltd.",

author = "Gordon Moore and Andrew Chizmeshya and McMillan, {Paul F.}",

note = "Funding Information: This work was supported by a NSF Earth Science Postdoctoral Fellowship to Gordon Moore, as well as NSF grant EAR-9614229 to P. McMillan. We also thank Drs. Fogel and Rutherford for permitting use of their samples, and Dr. Hervig for making them accessible to us for this calibration. Copyright: Copyright 2011 Elsevier B.V., All rights reserved.",

year = "2000",

doi = "10.1016/S0016-7037(00)00447-6",

language = "English (US)",

volume = "64",

pages = "3571--3579",

journal = "Geochmica et Cosmochimica Acta",

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publisher = "Elsevier Limited",

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TY - JOUR

T1 - Calibration of a reflectance FTIR method for determination of dissolved CO2 concentration in rhyolitic glasses

AU - Moore, Gordon

AU - Chizmeshya, Andrew

AU - McMillan, Paul F.

N1 - Funding Information: This work was supported by a NSF Earth Science Postdoctoral Fellowship to Gordon Moore, as well as NSF grant EAR-9614229 to P. McMillan. We also thank Drs. Fogel and Rutherford for permitting use of their samples, and Dr. Hervig for making them accessible to us for this calibration. Copyright: Copyright 2011 Elsevier B.V., All rights reserved.

PY - 2000

Y1 - 2000

N2 - A technique based upon infrared reflectance spectroscopy is developed as an alternative to the Fourier transform infrared (FTIR) transmission method for the quantitative measurement of dissolved molecular carbon dioxide in aluminosilicate glasses. The technique has the advantage that only a single sample surface need be polished, and no thickness measurement is necessary. The reflectance spectrum is analyzed by Kramers-Kronig relations or classical oscillator analysis to yield the optical constants and the absorption coefficient at 2350 cm-1, due to the asymmetric stretching (v3) vibration of molecular CO2. The value obtained is in excellent agreement with values obtained by the transmission FTIR technique for a suite of rhyolitic glasses. For practical application of the method to rhyolites, an empirical correlation is developed between the normalized change in reflectance at 2350 cm-1 and the CO2 content, up to ~0.40 wt%. Copyright (C) 2000 Elsevier Science Ltd.

AB - A technique based upon infrared reflectance spectroscopy is developed as an alternative to the Fourier transform infrared (FTIR) transmission method for the quantitative measurement of dissolved molecular carbon dioxide in aluminosilicate glasses. The technique has the advantage that only a single sample surface need be polished, and no thickness measurement is necessary. The reflectance spectrum is analyzed by Kramers-Kronig relations or classical oscillator analysis to yield the optical constants and the absorption coefficient at 2350 cm-1, due to the asymmetric stretching (v3) vibration of molecular CO2. The value obtained is in excellent agreement with values obtained by the transmission FTIR technique for a suite of rhyolitic glasses. For practical application of the method to rhyolites, an empirical correlation is developed between the normalized change in reflectance at 2350 cm-1 and the CO2 content, up to ~0.40 wt%. Copyright (C) 2000 Elsevier Science Ltd.

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M3 - Article

AN - SCOPUS:0033676867

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JO - Geochmica et Cosmochimica Acta

JF - Geochmica et Cosmochimica Acta

SN - 0016-7037

IS - 20

ER -

Calibration of a reflectance FTIR method for determination of dissolved CO₂ concentration in rhyolitic glasses

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