Deployment of a sequential two-photon laser-induced fluorescence sensor for the detection of gaseous elemental mercury at ambient levels: fast, specific, ultrasensitive detection with parts-per-quadrillion sensitivity

Bauer, D.; Everhart, S.; Remeika, J.; Tatum Ernest, C.; Hynes, A. J.

doi:https://doi.org/10.5194/amt-7-4251-2014

Articles | Volume 7, issue 12

https://doi.org/10.5194/amt-7-4251-2014

© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/amt-7-4251-2014

© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 7, issue 12

Research article

|

08 Dec 2014

Research article |

| 08 Dec 2014

Deployment of a sequential two-photon laser-induced fluorescence sensor for the detection of gaseous elemental mercury at ambient levels: fast, specific, ultrasensitive detection with parts-per-quadrillion sensitivity

D. Bauer, S. Everhart, J. Remeika, C. Tatum Ernest, and A. J. Hynes

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Final revised paper (published on 08 Dec 2014)
Preprint (discussion started on 06 Jun 2014)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC C1754: 'Review of Bauer et al.', Anonymous Referee #1, 16 Jul 2014
- AC C2713: 'amt-2014-170 - Final Response-Reply to Reviews', Anthony Hynes, 17 Sep 2014
RC C2061: 'Review to Bauer et al.', Anonymous Referee #2, 06 Aug 2014
- AC C2718: 'amt-2014-170 - Final Response-Reply to Reviews', Anthony Hynes, 17 Sep 2014

Short summary

An understanding of the biogeochemical cycling of mercury is an important health issue. Exposure to mercury is primarily through fish consumption. The typical background concentration of Hg(0) is ~200 ppq; hence atmospheric measurements represent a significant challenge in ultratrace analytical chemistry. We developed a laser-based sensor for detection of gas-phase elemental mercury, Hg(0), that is capable of fast in-situ measurements at ambient levels and can also measure oxidized mercury.