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Trace moisture detection using continuous-wave cavity ring-down spectroscopy.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Dudek, J. B. Tarsa, Peter B. Velásquez, A. Wladyslawski, Mark Rabinowitz, Paul H. Lehmann, Kevin K. |
| Copyright Year | 2003 |
| Abstract | We have developed an instrument to measure trace concentrations of small hydride species in gases using continuous-wave cavity ring-down spectroscopy with near-infrared diode laser excitation. An rms baseline equivalent absorbance of 9.2 x 10(-11) cm(-1)/square root(n) is found, where n is the number of ring-down transients. When the 1396.376-nm absorption line of water is used, this corresponds to a noise equivalent moisture concentration in nitrogen gas of 68 pptv/square root(n). Water vapor concentration is detected over a range extending from 3 to 1000 ppbv and found to depend linearly on the concentration as determined by a calibrated commercial moisture sensor. |
| File Format | PDF HTM / HTML |
| DOI | 10.1021/ac0343073 |
| PubMed reference number | 14632070 |
| Journal | Medline |
| Volume Number | 75 |
| Issue Number | 17 |
| Alternate Webpage(s) | http://faculty.virginia.edu/lehmannlab/papers/Anal.Chem.75.4599.20003.pdf |
| Alternate Webpage(s) | http://www.faculty.virginia.edu/lehmannlab/papers/Anal.Chem.75.4599.20003.pdf |
| Alternate Webpage(s) | http://faculty.virginia.edu/lehmannlab/papers/CRDS%20papers/Analytical%20Chemistry.pdf |
| Alternate Webpage(s) | https://doi.org/10.1021/ac0343073 |
| Journal | Analytical chemistry |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
