%0 Journal Article %1 Wood:2003p3423 %A Wood, EC %A Wooldridge, PJ %A Freese, JH %A Albrecht, T %A Cohen, RC %D 2003 %J Environmental Science & Technology %K 72-Degrees-S Absorption Cross-Sections, Emission-Spectra, Fourier-Transform Insitu Latitude Lifetimes, N2O5, Nitrate No3, Observations, Radiative Radical Ring-Down Spectroscopy, Stratospheric Temperature-Dependence, %N 24 %P 5732--5738 %T Prototype for in situ detection of atmospheric NO3 and N2O5 via laser-induced fluorescence %U http://www.google.com/search?client=safari&rls=en-us&q=Prototype+for+in+situ+detection+of+atmospheric+NO3+and+N2O5+via+laser-induced+fluorescence&ie=UTF-8&oe=UTF-8 %V 37 %X We describe a prototype designed for in situ detection of the nitrate radical (NO3) by laser-induced fluorescence (LIF) and of N2O5 by thermal dissociation followed by LIF detection of NO3. An inexpensive 36 mW continuous wave multi-mode diode laser at 662 nm is used to excite NO3 in the (B) over tilde E-2'(0000) <-- (X) over tilde (2)A'(2)(0000) band. Fluorescence is collected from 700 to 750 nm. The prototype has a sensitivity to NO3 of 76 ppt for a 60 s integration with an accuracy of 8%. Although this sensitivity is adequate for studies of N2O5 in many environments, it is much less sensitive (about 300 times) than expected based on a comparison of previously measured photophysical properties of NO2 and NO3. This implies much stronger nonradiative coupling of electronic states in NO3 than in NO2.

@article{Wood:2003p3423, abstract = {We describe a prototype designed for in situ detection of the nitrate radical (NO3) by laser-induced fluorescence (LIF) and of N2O5 by thermal dissociation followed by LIF detection of NO3. An inexpensive 36 mW continuous wave multi-mode diode laser at 662 nm is used to excite NO3 in the (B) over tilde E-2'(0000) <-- (X) over tilde (2)A'(2)(0000) band. Fluorescence is collected from 700 to 750 nm. The prototype has a sensitivity to NO3 of 76 ppt for a 60 s integration with an accuracy of 8%. Although this sensitivity is adequate for studies of N2O5 in many environments, it is much less sensitive (about 300 times) than expected based on a comparison of previously measured photophysical properties of NO2 and NO3. This implies much stronger nonradiative coupling of electronic states in NO3 than in NO2.}, added-at = {2010-06-22T19:38:37.000+0200}, affiliation = {Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA}, author = {Wood, EC and Wooldridge, PJ and Freese, JH and Albrecht, T and Cohen, RC}, biburl = {https://www.bibsonomy.org/bibtex/2e9f8749a3064373a593da54690582faf/gsmith}, date-added = {2010-05-05 10:29:42 -0400}, date-modified = {2010-05-05 10:29:50 -0400}, interhash = {bf2ea55c186920e0629909a3d27b905e}, intrahash = {e9f8749a3064373a593da54690582faf}, journal = {Environmental Science {\&} Technology}, keywords = {72-Degrees-S Absorption Cross-Sections, Emission-Spectra, Fourier-Transform Insitu Latitude Lifetimes, N2O5, Nitrate No3, Observations, Radiative Radical Ring-Down Spectroscopy, Stratospheric Temperature-Dependence,}, language = {English}, local-url = {file://localhost/Users/geoffreysmith/Documents/Papers/Environmental%20Science%20&%20Technology/2003/Environmental%20Science%20&%20Technology,%2037,%205732-5738%202003.pdf}, month = Jan, number = 24, pages = {5732--5738}, pmid = {000187248000035}, rating = {0}, timestamp = {2010-06-22T19:38:58.000+0200}, title = {Prototype for in situ detection of atmospheric NO3 and N2O5 via laser-induced fluorescence}, uri = {papers://E88B624E-D406-46FF-9D95-BB9C1AAE3FDC/Paper/p3423}, url = {http://www.google.com/search?client=safari&rls=en-us&q=Prototype+for+in+situ+detection+of+atmospheric+NO3+and+N2O5+via+laser-induced+fluorescence&ie=UTF-8&oe=UTF-8}, volume = 37, year = 2003 }