Cavity-enhanced absorption using an atomic line source: application to deep-UV measurements

Simple item page
dc.contributor.authorDarby, Steven B.
dc.contributor.authorSmith, Paul D.
dc.contributor.authorVenables, Dean S.
dc.date.accessioned2012-11-20T11:46:38Z
dc.date.available2012-11-20T11:46:38Z
dc.date.issued2012-03
dc.date.updated2012-10-23T15:09:23Z
dc.description.abstractOptical cavities are commonly used to increase the sensitivity of absorption measurements, but have not been extensively used below 300 nm, mainly owing to the limited light sources at these wavelengths. While some progress has been made using cavity ring-down spectroscopy, these systems rely on complex and expensive lasers. Here we investigate an approach combining Cavity-Enhanced Absorption Spectroscopy (CEAS) with an inexpensive low vapour pressure mercury lamp for sensitive absorption measurements at 253.7 nm. We demonstrate that the CEAS absorption in our system is 50 times greater than the absorption found in a single-pass configuration; using this approach, we obtained limits of detection of 8.1 pptv (66 ng m(-3)) for gaseous elemental mercury and 8.4 ppbv for ozone. We evaluate the performance of the system and discuss potential improvements and applications of this approach.en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationDARBY, S. B., SMITH, P. D. & VENABLES, D. S. 2012. Cavity-enhanced absorption using an atomic line source: application to deep-UV measurements. Analyst, 137, 2318-2321. doi: 10.1039/c2an35149hen
dc.identifier.doi10.1039/c2an35149h
dc.identifier.endpage2321en
dc.identifier.issn0003-2654
dc.identifier.issn1364-5528
dc.identifier.journaltitleAnalysten
dc.identifier.startpage2318en
dc.identifier.urihttps://hdl.handle.net/10468/786
dc.identifier.volume137en
dc.language.isoenen
dc.publisherRoyal Society of Chemistryen
dc.rights© The Royal Society of Chemistry 2012.en
dc.subjectRing-down spectroscopyen
dc.subjectLaseren
dc.subjectUltravioleten
dc.subjectMercuryen
dc.subjectSpectraen
dc.subjectLiquidsen
dc.subjectPhaseen
dc.subjectN2O5en
dc.subjectNO3en
dc.titleCavity-enhanced absorption using an atomic line source: application to deep-UV measurementsen
dc.typeArticle (peer-reviewed)en
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
SBD_Cavity-enhancedAV2012.pdf
Size:
289.47 KB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
2.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Chemistry - Journal Articles
Environmental Research Institute - Journal Articles