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Issue 7, 2015
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Using integrated absorption to calibrate optical cavity spectrometers

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Abstract

Sensitive absorption techniques using optical cavities (such as CEAS or ICOS) generally need the spectrometer response to be calibrated for quantitative measurements. Most calibrations are based on the instrument response to a known, steady state absorption. Such calibrations often have drawbacks in terms of cost, complexity, or convenience, especially for field measurements. In this paper, we show that the relationship between the integrated absorption and a known amount of absorber provides an alternative calibration strategy that yields a highly linear calibration curve and has a low uncertainty. This method is straightforward to implement and offers a practical alternative to other calibration strategies.

Graphical abstract: Using integrated absorption to calibrate optical cavity spectrometers

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Publication details

The article was received on 11 Jan 2015, accepted on 27 Feb 2015 and first published on 02 Mar 2015


Article type: Technical Note
DOI: 10.1039/C5AY00080G
Citation: Anal. Methods, 2015,7, 3298-3301
  • Open access: Creative Commons BY license
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    Using integrated absorption to calibrate optical cavity spectrometers

    D. P. Fullam, K. Shoji and D. S. Venables, Anal. Methods, 2015, 7, 3298
    DOI: 10.1039/C5AY00080G

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