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Portable device for measuring breath acetone based on sample preconcentration and cavity enhanced spectroscopy

Abstract:

A portable and compact device is demonstrated for measuring acetone in breath samples. The device features a 7 cm long high finesse optical cavity as an optical sensor that is coupled to a miniature adsorption preconcentrator containing 0.5 g of polymer material. Acetone is trapped out of breath and released into the optical cavity where it is probed by a near-infrared diode laser operating at ~1670 nm. With an optical cavity mirror reflectivity of 99.994 % a limit of detection of 159 ppbv (1...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Accepted manuscript

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Publisher copy:
10.1021/acs.analchem.6b02837

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Department:
Oxford, MPLS, Chemistry, Physical & Theoretical Chem
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Department:
Oxford, MPLS, Chemistry, Physical & Theoretical Chem
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Department:
Oxford, MPLS, Chemistry, Physical & Theoretical Chem
Blaikie, TPJ More by this author
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Publisher:
American Chemical Society Publisher's website
Journal:
Analytical Chemistry Journal website
Volume:
88
Issue:
20
Pages:
11016–11021
Publication date:
2016-10-05
Acceptance date:
2016-10-18
DOI:
EISSN:
1520-6882
ISSN:
0003-2700
Pubs id:
pubs:656043
URN:
uri:1e4606b4-779a-42a6-a9aa-ad5b4f63a0c2
UUID:
uuid:1e4606b4-779a-42a6-a9aa-ad5b4f63a0c2
Local pid:
pubs:656043

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