NDLI: Determination of the 2H/1H, 17O/16O, and 18O/16O isotope ratios in water by means of tunable diode laser spectroscopy at 1.39 microm.

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Determination of the 2H/1H, 17O/16O, and 18O/16O isotope ratios in water by means of tunable diode laser spectroscopy at 1.39 microm.

Content Provider	Semantic Scholar
Author	Kerstel, E. R. Th. Gagliardi, Gianluca Gianfrani, Livio Meijer, Harro A. J. Trigt, R. Van Ramaker, Raymond
Copyright Year	2002
Abstract	We demonstrate the feasibility of the accurate and simultaneous measurement of the 2H/1H, 17O/16O, and 18O/16O isotope ratios in water vapor by means of tunable diode laser spectroscopy. The absorptions are due to the v1 + v3 combination band, observed using a room temperature, distributed feedback (DFB) diode laser at 1.39 microm. The precision of the instrument is approximately 3, 1, and 0.5/1000 for the 2H, 17O, and 18O isotope ratios, respectively, and is at present limited by residual optical feedback to the laser. The signal-to-noise, however, is superior to that obtained in a similar experiment using a color center laser at 2.7 microm. Replacing the current laser with a better unit, we are confident that a precision well below 1/1000 is attainable for all three isotope ratios. The diode laser apparatus is ideally suited for applications demanding a reliable, cheap, and/or portable instrument, such as the biomedical doubly labeled water method and atmospheric sensing.
File Format	PDF HTM / HTML
DOI	10.1016/s1386-1425(02)00053-7
PubMed reference number	12353687
Journal	Medline
Volume Number	58
Issue Number	11
Alternate Webpage(s)	https://www.rug.nl/research/portal/files/13349657/2002SpectrochimActaAKerstel.pdf
Alternate Webpage(s)	https://doi.org/10.1016/s1386-1425%2802%2900053-7
Journal	Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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