Publications

75. J.B. Saharchuk, F.A. Careem, and H.D. Osthoff (2025)
"A survey of total nitrogen abundance in pullet and laying hen houses in Alberta, Canada"
J. Appl. Poultry Res. accepted for publication (Oct 13). 

74. A.L. Gomez, A.M.S. Hallett, K.D. Easterbrook, A.M. Miller, and H.D. Osthoff (2025)
"Measurement of Henry’s law solubility and liquid-phase loss rate constants for acryloyl
        peroxynitrate (APAN) in deionized water at room temperature"
J. Atmos. Chem. 82, 10, doi: 10.1007/s10874-025-09475-4. 

73. A.L. Gomez, K.D. Easterbrook, N.M. Johnson, S. Johnson, and H.D. Osthoff (2025)
"Thermal decomposition of peroxyacrylic nitric anhydride (APAN)"
Environ. Sci.: Atmos. 5(7), 801-813 doi: 10.1039/D5EA00032G. 

72. J.B.E. Saharchuk, M.F. Abdul-Careem, and H.D. Osthoff (2025)
"Utility of ammonium salts for the calibration of NH3 sensors"
Meas. Sci. Technol. 36(5), 055802, doi: 10.1088/1361-6501/add033. 

70. N.M. Garner and H.D. Osthoff (2024)
"Conversion of a senior instrumental analysis laboratory course to online delivery and remote learning"
J. Chem. Educ. 101(2), 448-455, doi: 10.1021/acs.jchemed.3c00805.

69. K.E. Easterbrook, M.A. Vona, and H.D. Osthoff (2024)
"Measurement of Henry's law constants of ethyl nitrate in deionized water, synthetic sea salt
        solutions, and n-octanol"
Chemosphere 346, 140482, doi: 10.1016/j.chemosphere.2023.140482.

68. K.E. Easterbrook, M.A. Vona, K. Nayebi-Astaneh, A.M. Miller, and H.D. Osthoff (2023)
"Measurement of Henry's law and liquid-phase loss rate constants of peroxypropionic nitric anhydride (PPN) in deionized water and in n-octanol"
Atmos. Chem. Phys. 23(1), 311-322, doi: 10.5194/acp-23-311-2023.

66. N. Gingerysty, N. Jordan, C.A. Odame-Ankrah and H.D. Osthoff (2021)
"Interference from HONO in the measurement of ambient air NO2 via photolytic conversion and quantification of NO"
J. Environ. Sci. 107C, 184-193, doi: 10.1016/j.jes.2020.12.011.
Open access link: http://hdl.handle.net/1880/113522.

65. A.G. Zborowska, C.Y. MacInnis, C.Z. Ye, and H.D. Osthoff (2021)
"On the photolysis branching ratio of methyl ethyl ketone"
Atmos. Environ. 254, 118383, doi: 10.1016/j.atmosenv.2021.118383.
Open access link: http://hdl.handle.net/1880/113513.

64. N. Garner, L. Matchett and H.D. Osthoff (2020)
"Quantification of Non-refractory Aerosol Nitrate in Ambient Air by Thermal Dissociation Cavity Ring-Down Spectroscopy"
Environ. Sci. Technol. 54(16), 9854-9861, doi: 10.1021/acs.est.0c01156.
Open access link: http://hdl.handle.net/1880/113523.

63. N. Gingerysty and H.D. Osthoff (2020)
"A compact, high-purity source of HONO validated by Fourier Transform Infrared and Thermal Dissociation Cavity Ring-down Spectroscopy"
Atmos. Meas. Tech. 13(8), 4159-4167, doi: 10.5194/amt-13-4159-2020.

62. N. Jordan, N.M. Garner, L.C. Matchett, T.W. Tokarek, H.D. Osthoff, C.A. Odame-Ankrah,
C. Grimm, K. Pickrell, C. Swainson, and B. Rosentreter (2020)
"Potential interferences in photolytic nitrogen dioxide converters for ambient air monitoring: evaluation of a prototype"
J. Air & Waste Managem. Assoc. 70(8), 753-764, doi: 10.1080/10962247.2020.1769770.

60. N. Jordan and H.D. Osthoff (2020)
"Quantification of nitrous acid (HONO) and nitrogen dioxide (NO2) in ambient air by broadband cavity-enhanced absorption spectroscopy (IBBCEAS) between 361 and 388 nm"
Atmos. Meas. Tech. 13(1), 273-295, doi: 10.5194/amt-13-273-2020.

58. N. Jordan, C.Z. Ye, S. Ghosh, R.A. Washenfelder, S.S. Brown, and H.D. Osthoff (2019)
"A broadband cavity-enhanced spectrometer for atmospheric trace gas measurements and Rayleigh scattering cross sections  in the cyan region (470-540 nm)"
Atmos. Meas. Tech. 12(2), 1277-1293, doi: 10.5194/amt-12-1277-2019.

57. T.W. Tokarek, D. K. Brownsey, N. Jordan, N.M. Garner, C.Z. Ye, and H.D. Osthoff (2019)
"Emissions of C9-C16 hydrocarbons from kelp species on Vancouver Island: Alaria marginata (winged kelp) and Nereocystis luetkeana (bull kelp) as an atmospheric source of limonene"
Atmospheric Environment X 2, 100007, doi: 10.1016/j.aeaoa.2019.100007.

56. T.W. Tokarek, C.A. Odame-Ankrah, J.A. Huo, R. McLaren, A.K.Y. Lee, M.G. Adam, M.D. Willis, J.P.D. Abbatt, C. Mihele, A. Darlington, R.L. Mittermeier, K. Strawbridge, K.L. Hayden, J.S. Olfert, E.G. Schnitzler, D.K. Brownsey, F.V. Assad, G.R. Wentworth, A.G. Tevlin, D.E.J. Worthy, S.-M. Li, J. Liggio, J.R. Brook, and H.D. Osthoff (2018)
"Principal component analysis of summertime ground site measurements in the Athabasca oil sands with a focus on analytically unresolved intermediate-volatility organic compounds"
Atmos. Chem. Phys. 18(24), 17819-17841, doi: 10.5194/acp-18-17819-2018.

55. Y.M. Taha,  M.T. Saowapon,  F.V. Assad, C.Z. Ye, X. Chen, N.M. Garner and H.D. Osthoff (2018)
"Quantification of peroxynitric acid and peroxyacyl nitrates using an ethane-based thermal dissociation peroxy radical chemical amplification cavity ring-down spectrometer"
Atmos. Meas. Tech. 11(7), 4109-4127, doi: 10.5194/amt-11-4109-2018.

54. H.D. Osthoff,  C.A. Odame-Ankrah, Y.M. Taha, T.W. Tokarek, C.L. Schiller, D. Haga, K. Jones, and R. Vingarzan (2018)
"Low levels of nitryl chloride at ground level: Nocturnal nitrogen oxides in the Lower Fraser Valley of British Columbia"
Atmos. Chem. Phys. 18, 6293-6315, doi: 10.5194/acp-18-6293-2018.

52. Y.M. Taha,  M.T. Saowapon, and H.D. Osthoff (2018)
"Detection of triacetone triperoxide by thermal decomposition peroxy radical chemical amplification coupled to cavity ring-down spectroscopy"
Anal. Bioanal. Chem. 410(17), 4203-4212, doi: 10.1007/s00216-018-1072-0.

51. T.W. Tokarek, D. K. Brownsey, N. Jordan, N.M. Garner, C.Z. Ye, F.V. Assad, A. Peace,
C.L. Schiller, R.H. Mason, R. Vingarzan, and H.D. Osthoff (2017)
"Biogenic emissions and nocturnal ozone depletion events at the Amphitrite Point Observatory on Vancouver Island"
Atmosphere-Ocean 55(2), 121-132, doi: 10.1080/07055900.2017.1306687.

45. L.H. Mielke, A. Furgeson, C.A. Odame-Ankrah, and H.D. Osthoff (2016)
"Ubiquity of ClNO2 in the urban boundary layer of Calgary, AB, Canada"
Can. J. Chem. 94(4), 414-423, doi: 10.1139/cjc-2015-0426.

44. N.D. Rider, Y.M. Taha, C.A. Odame-Ankrah, J.A. Huo, T.W. Tokarek, E. Cairns, S.G. Mousa,
J. Liggio, and H. D. Osthoff (2015)
"Efficient photochemical generation of peroxycarboxylic nitric anhydrides with ultraviolet light emitting diodes"
Atmos. Meas. Tech. 8(7), 2736-2748, doi: 10.5194/amt-8-2737-2015.

42. R. Woodward-Massey, Y. M. Taha, S. G. Moussa, and H. D. Osthoff (2014)
"Comparison of negative-ion proton-transfer with iodide ion chemical ionization mass spectrometry for quantification of isocyanic acid in ambient air"
Atmos. Environm. 98, 693-703, doi: 10.1016/j.atmosenv.2014.09.014.

41. T.W. Tokarek, J.A. Huo, C.A. Odame-Ankrah, D. Hammoud, Y.M. Taha, and H.D. Osthoff (2014)
"A gas chromatograph for quantification of peroxycarboxylic nitric anhydrides calibrated by thermal dissociation cavity ring-down spectroscopy"
Atmos. Meas. Tech. 7, 3263-3283, doi:10.5194/amt-7-3263-2014.

39. L.H. Mielke, J. Stutz, C. Tsai, S.C. Hurlock, J.M. Roberts, P.R. Veres, K. D. Froyd, P.L. Hayes,
M. J. Cubison, J.L. Jimenez, R.A. Washenfelder, C.J. Young, J.B. Gilman, J.A. de Gouw, J.H. Flynn,
N. Grossberg, B.L. Lefer, J. Liu, R.J. Weber, and H.D. Osthoff (2013)
"Heterogeneous formation of nitryl chloride and its role as a nocturnal NOx reservoir species during CalNex-LA 2010"
J. Geophys. Res.-Atmos. 118(18), 10,638–10,652, doi: 10.1002/jgrd.50783.

38. Y.M. Taha, C.A. Odame Ankrah, and H.D. Osthoff (2013)
"Real-time vapor detection of nitroaromatic explosives by catalytic thermal dissociation blue diode laser cavity ring-down spectroscopy"
Chem. Phys. Lett. 582, 15-20, doi: 10.1016/j.cplett.2013.07.040.

35. O. Abida and H.D. Osthoff (2012)
"Parahalogenated Phenols Accelerate the Photochemical Release of Nitrogen Oxides from Frozen Solutions Containing Nitrate"
J. Phys. Chem. A 116(24), 5923–5931, doi: 10.1021/jp210249t.

34. L.H. Mielke and H.D. Osthoff (2012)
"On quantitative measurements of peroxycarboxylic nitric anhydride mixing ratios by thermal dissociation chemical ionization mass spectrometry"
Internat. J. Mass Spec. 310, 1-9, doi: 10.1016/j.ijms.2011.10.005.

33. L.H. Mielke, A. Furgeson, and H.D. Osthoff (2011)
"Observation of ClNO2 in a mid-continental urban environment"
Environm. Sci. Technol. 45(20), 8889–8896, doi: 10.1021/es201955u.

32. C. Odame-Ankrah and H.D. Osthoff (2011)
"A compact diode laser cavity ring-down spectrometer for atmospheric measurements of NO3 and N2O5 with automated zeroing and calibration"
Appl. Spectrosc. 65(11), 1260-1268, doi: 10.1366/11-06384.
Direct link: http://www.opticsinfobase.org/abstract.cfm?uri=as-65-11-1260.

31. O. Abida and H.D. Osthoff (2011)
"On the pH dependence of photo-induced volatilization of nitrogen oxides from frozen solutions containing nitrate"
Geophys. Res. Lett. 38, L16808, 1-5, doi: 10.1029/2011GL048517.

30. O. Abida, L.H. Mielke, and H.D. Osthoff (2011)
"Observation of gas-phase peroxynitrous and peroxynitric acid during the photolysis of nitrate in acidified frozen solutions"
Chem. Phys. Lett. 511(4-6), 187-192, doi: 10.1016/j.cplett.2011.06.055.

29. A. Furgeson, L.H. Mielke, D. Paul, and H.D. Osthoff (2011)
"A photochemical source of peroxypropionic and peroxyisobutanoic nitric anhydride"
Atmos. Environm. 45(28), 5025-5032, doi: 10.1016/j.atmosenv.2011.03.072.

28. R.D. Thaler, L.H. Mielke, and H.D. Osthoff (2011)
"Quantification of nitryl chloride at part per trillion mixing ratios by thermal dissociation cavity ring-down spectroscopy"
Anal. Chem. 83(7), 2761-2766, doi: 10.1021/ac200055z.

25. D. Paul and H.D. Osthoff (2010)
"Absolute measurements of total peroxy nitrate mixing ratios by thermal dissociation blue diode laser cavity ring-down spectroscopy"
Anal. Chem. 82(15), 6695-6703, doi: 10.1021/ac101441z.

22. D. Paul, A. Furgeson, and H.D. Osthoff (2009)
"Measurement of total alkyl and peroxy nitrates by thermal decomposition cavity ring-down spectroscopy"
Rev. Sci. Instrum. 80(11), 114101, doi: 10.1063/1.3258204.

71. X. Guo, A. Rowshon, S. Wu, K. Wong, V. Carney, M. Zuidhof, J. Saharchuk, H.D. Osthoff, and
R. Zhao (2025)
"Characterization of Indoor Amino Compounds in Poultry Farms: A Brief View of Chemical
Exposures to Chickens and Farmers"
Environm. Sci.: Processes & Impacts. 101(2), 448-455, doi: 10.1039/D4EM00254G.

67. N. Chisholm, B. Nagare, C. Wainwright, E. Creegan, L. Salehpoor, T.C. VandenBoer,
T. Bullock, B. Croft, G. Lesins, H. Osthoff, H.J.S. Fernando and R.Y.W. Chang (2021)
"Characterizing Atmospheric Aerosols off the Atlantic Canadian Coast During C-FOG"
Boundary-Layer Meteorology 181(2-3), 345-364, doi: 10.1007/s10546-021-00673-7. 

61. Z.Y.W. Davis, U. Frieβ, K.B. Strawbridge, M. Aggarwaal, S. Baray, E.G. Schnitzler, A. Lobo,
V.E. Fioletov, I. Abboud, C.A. McLinden, J. Whiteway, M.D. Willis, A.K.Y. Lee, J. Brook, J. Olfert,
J. O’Brien, R. Staebler, H.D. Osthoff, C. Mihele, and R. McLaren (2020)
"Validation of MAX-DOAS retrievals of aerosol extinction, SO2  and NO2 through comparison with lidar, sun photometer, Active-DOAS and aircraft measurements in the Athabasca Oil Sands Region"
Atmos. Meas. Tech. 13(3), 1129- 1155, doi: 10.5194/amt-13-1129-2020. 

59. A.K.Y. Lee, M.G. Adam, J. Liggio, S.-M. Li, K. Li, M.D. Willis, J.P.D. Abbatt, T.W. Tokarek,
C.A. Odame-Ankrah, H.D. Osthoff, K. Strawbridge and J.R. Brook (2019)
"A large contribution of anthropogenic organo-nitrates to secondary organic aerosol in the Alberta oil sands"
Atmos. Chem. Phys. 19(19), 12209-12219, doi: 10.5194/acp-19-12209-2019.

53. N. Amiri, A.-L. Norman, R. Ghahremaninezhad, O. Rempillo, H.D. Osthoff, C.A. Odame-Ankrah, and T.W. Tokarek (2018)
"Stable sulfur isotope measurements to trace the fate of SO2 in the Athabasca oil sands region"
Atmos. Chem. Phys. 18(11), 7757-7780, doi: 10.5194/acp-18-7757-2018.

50. N. L. Ng, S. S. Brown, A. T. Archibald, E. Atlas, R. C. Cohen, J. N. Crowley, D. A. Day,
N. M. Donahue, J. L. Fry, H. Fuchs, R. J. Griffin, M. I. Guzman, H. Hermann, A. Hodzic,
Y. Iinuma, J. L. Jimenez, A. Kiendler-Scharr, B. H. Lee, D. J. Luecken, J. Mao, R. McLaren,
A. Mutzel, H. D. Osthoff, B. Ouyang, B. Picquet-Varrault, U. Platt, H. O. T. Pye, Y. Rudich,
R. H. Schwantes, M. Shiraiwa, J. Stutz, J. A. Thornton, A. Tilgner, B. J. Williams, and
R. A. Zaveri (2017)
"Nitrate radicals and biogenic volatile organic compounds: oxidation, mechanisms and organic aerosol"
Atmos. Chem. Phys. 17(3), 2103-2162, doi: 10.5194/acp-17-2103-2017.

49. M. Zatko, J. Erbland, J. Savarino, L. Geng, L. Easley, A. Schauer, T. Bates, P. Quinn, B. Light,
D. Morison, H.D. Osthoff, S. Lyman, W. Neff, B. Yuan, and B. Alexander (2016)
"The magnitude of the snow-sourced reactive nitrogen flux to the boundary layer in the Uintah Basin, Utah, USA"
Atmos. Chem. Phys. 16(21), 13837-13851, doi: 10.5194/acp-16-13837-2016.

48. J. Liggio, S.-M. Li, K. Hayden, Y.M. Taha, C. Stroud, A. Darlington, B.D. Drollette, M. Gordon,
P. Lee, P. Liu, A. Leithead, S.G. Moussa, D. Wang, J. O’Brien, R.L. Mittermeier, J.R. Brook,
G. Lu, R.M. Staebler, Y. Han, T.W. Tokarek, H.D. Osthoff, P.A. Makar,  J. Zhang, D.L. Plata, and D.R. Gentner (2016)
"Oil sands operations as a large source of secondary organic aerosols"
Nature 534(7605), 91-94, doi: 10.1038/nature1764.

47. S. Griffith, R. Hansen, S. Dusanter, V. Michoud, J. Gilman, W. Kuster, P. Veres, M. Graus,
J. de Gouw, J.M. Roberts, C. Young, R. Washenfelder, S.S. Brown, R. Thalman, E. Waxman,
R. Volkamer, C. Tsai, J. Stutz , J. Flynn , N. Grossberg, B. Lefer, S. Alvarez,
B. Rappenglueck , L. Mielke, H.D. Osthoff, and P.S. Stevens (2016)
"Measurements of Hydroxyl and Hydroperoxy Radicals during CalNex-LA: Model Comparisons and Radical Budgets"
J. Geophys. Res.-Atmos. 121(8), 4211-4232, doi: 10.1002/2015JD024358.

46. B. Yuan, J. Liggio, J. Wentzell, S-M. Li, H. Stark, J.M. Roberts, J. Gilman, B. Lerner,
C. Warneke, R. Li, A. Leithead, H.D. Osthoff, R. Wild, S.S. Brown, and J.A. de Gouw (2015)
"Secondary formation of nitrated phenols: insights from observations during the Uintah Basin Winter Ozone Study (UBWOS) 2014"
Atmos. Chem. Phys. 16(4), 2139-53, doi: 10.5194/acp-16-2139-2016.

43. C. Tsai, C. Wong, S. Hurlock, O. Pikelnaya, L.H. Mielke, H.D. Osthoff, J.H. Flynn, C. Haman,
B. Lefer, J. Gilman, J. de Gouw, and J. Stutz (2014)
"Nocturnal loss of NOx during the 2010 CalNex-LA study in the Los Angeles Basin"
J. Geophys. Res.-Atmos. 119(22), 13004-13025, doi: 10.1002/2014JD022171.

40. C.J. Young, R. A. Washenfelder, P. M. Edwards, D. D. Parrish, J. B. Gilman, W. C. Kuster,
L. H. Mielke, H. D. Osthoff, C. Tsai, O. Pikelnaya, J. Stutz, P. R. Veres, J. M. Roberts, S. Griffith,
S. Dusanter, P. S. Stevens, J. Flynn, N. Grossberg, B. Lefer, J. S. Holloway, J. Peischl, T. B. Ryerson, E. L. Atlas, D. R. Blake, and S. S. Brown (2014)
"Chlorine as a primary radical: evaluation of methods to understand its role in initiation of oxidative cycles"
Atmos. Chem. Phys. 14(7), 3427-3440, doi: 10.5194/acp-14-3427-2014.

37. C.J. Young, R.A. Washenfelder, J.M. Roberts, L.H. Mielke, H.D. Osthoff, C. Tsai., O. Pikelnaya,
J. Stutz, P.R. Veres, A.K. Cochran, T.C. VandenBoer, J. Flynn, N. Grossberg, C.L. Haman, B. Lefer, H. Stark, M. Graus, J.A. deGouw, J.B. Gilman, W.C. Kuster, and S.S. Brown (2012)
"Vertically resolved measurements of nighttime radical reservoirs in Los Angeles and their contribution to the urban radical budget"
Environm. Sci. Technol. 46(20), 10965-10973, doi: 10.1021/es302206a.

26. D. Wasylenko, C. Ganesamoorthy, M. Henderson, B. Koivisto, H.D. Osthoff, and C. Berlinguette (2010)
"Electronic Modification of the [RuII(tpy)(bpy)(OH2)]2+ Scaffold: Effects on Catalytic Water Oxidation"
J. Am. Chem. Soc. 132(45), 16094-16106, doi: 10.1021/ja106108y.

36. R. Sommariva, T.S. Bates, D. Bon, D.M. Brookes, J.A. de Gouw, J.B. Gilman, S.C. Herndon,
W.C. Kuster, B.M. Lerner, P.S. Monks, H.D. Osthoff, D.D. Parrish, A.E. Parker, J.M. Roberts,
S.C. Tucker, C. Warneke, E.J. Williams, M.S. Zahniser, and S.S. Brown (2012)
"Modelled and measured concentrations of peroxy radicals and nitrate radical in the U.S. Gulf Coast region during TexAQS 2006"
J. Atmos. Chem. 68(4), 331-362, doi: 10.1007/s10874-012-9224-7.

27. R. Sommariva, S.S. Brown, J.M. Roberts, D.M. Brookes, A.E. Parker, P.S. Monks, T.S. Bates,
D. Welsh-Bon, J.A. de Gouw, G.J. Frost, J.B. Gilman, P.D. Goldan, S.C. Herndon, W.C. Kuster,
B.M. Lerner, H. D. Osthoff, S.C. Tucker, C. Warneke, E.J. Williams, and M.S. Zahniser (2011) "Ozone production in remote oceanic and industrial areas derived from ship based measurements of peroxy radicals during TexAQS 2006"
Atmos. Chem. Phys. 11(6), 2471-2485, doi: 10.5194/acp-11-2471-2011.

24. S.C. Tucker, R.M. Banta, A.O. Langford, C.J. Senff, W.A. Brewer, E.J. Williams, B.M. Lerner,
H. Osthoff, and R.M. Hardesty (2010)
"Relationships of coastal nocturnal boundary layer kinetics to Houston ozone concentrations during TexAQS 2006"
J. Geophys. Res.-Atmos. 115, D10304, doi: 10.1029/2009JD013169.

23. H. Simon, Y. Kimura, G. McGaughey, D. T. Allen, S. S. Brown, D. Coffman, J. Dibb, H.D. Osthoff,
P. Quinn, J.M. Roberts, G. Yarwood, S. Kemball-Cook, D. Byun, and D. Lee (2010)
"Modeling Heterogeneous ClNO2 Formation, Chloride Availability, and Chlorine Cycling in Southeast Texas"
Atmos. Environm. 44(40), 5476-5488, doi: 10.1016/j.atmosenv.2009.09.006.

21. J.M. Roberts, H.D. Osthoff, S.S. Brown, A.R. Ravishankara, D. Coffman, P. Quinn, and T. Bates (2009)
"Laboratory Studies of Products of N2O5  Uptake on Cl- Containing Substrates "
Geophys. Res. Lett. 36, L20808, doi: 10.1029/2009GL040448.

20. S.S. Brown, W.P. Dubé, H. Fuchs, T.B. Ryerson, A.G. Wollny, C.A. Brock, R. Bahreini,
A.M. Middlebrook, J.A. Neuman, E. Atlas, J.M. Roberts, H.D. Osthoff, M. Trainer, F.C. Fehsenfeld, and A.R. Ravishankara (2009)
"Reactive uptake coefficients for N2O5 determined from aircraft measurements during TexAQS 2006; Comparison to current model parameterizations"
J. Geophys. Res.-Atmos. 114, D00F10, doi: 10.1029/2008JD011679.

19. H.D. Osthoff, T.S. Bates, J.E. Johnson, W.C. Kuster, P. Goldan,R. Sommariva, E.J. Williams,
B.M. Lerner, C. Warneke, J.A. de Gouw, A. Pettersson, T. Baynard, J.F. Meagher, F.C. Fehsenfeld,
A. R. Ravishankara, and S.S. Brown (2009)
"Regional variation of dimethyl sulfide oxidation mechanism in the summertime marine boundary layer in the Gulf of Maine"
J. Geophys. Res.-Atmos. 114, D07301, doi: 10.1029/2008JD010990.

18. H. Simon, Y. Kimura, G. McGaughey, D. T. Allen, S. S. Brown, H.D. Osthoff, J.M. Roberts, D. Byun, and D. Lee (2009)
"Modeling the Impact of ClNO2 on Ozone Formation in the Houston Area"
J. Geophys. Res.-Atmos. 114, D00F03, doi: 10.1029/2008JD010732.

17. R. Sommariva, H.D. Osthoff, S. S. Brown, T. S. Bates, T. Baynard, D. Coffman, J. A. de Gouw,
P. D. Goldan, W. C. Kuster, B. M. Lerner, H. Stark, C. Warneke, E. J. Williams, F. C. Fehsenfeld,
A. R. Ravishankara, and M. Trainer (2009)
"Radicals in the marine boundary layer during NEAQS 2004: a model study of day-time and night-time sources and sinks"
Atmos. Chem. Phys. 9(9), 3075-3093, doi: 10.5194/acp-9-3075-2009.

16. J.M. Roberts, H.D. Osthoff, S.S. Brown, and A.R. Ravishankara (2008)
"N2O5  Oxidizes Chloride to Cl2 in Acidic Atmospheric Aerosol"
Science 321(5892), 1059, doi: 10.1126/science.1158777.

15. H.D. Osthoff, J.M. Roberts, A.R. Ravishankara, E.J. Williams, B.M. Lerner, R. Sommariva,
T.S. Bates, D.Coffman, P.K. Quinn, H. Stark, J.B. Burkholder, R. K. Talukdar, J. Meagher,
F.C. Fehsenfeld, and S.S. Brown (2008)
"High Levels of Nitryl Chloride in the Polluted Subtropical Marine Boundary Layer"
Nature Geosci. 1(5), 324-328, doi: 10.1038/ngeo177.

14. H.D. Osthoff, M.J. Pilling, A.R. Ravishankara, and S.S. Brown (2007)
"Temperature dependence of the NO3 absorption cross-section above 298 K and determination of the equilibrium constant for NO3 + NO3 <-> N2O5 at atmospherically relevant conditions"
Phys. Chem. Chem. Phys. 9(43), 5785-5793, doi: 10.1039/B709193A.

13. S.S. Brown, W.P. Dubé, H.D. Osthoff, J. Stutz, T.B. Ryerson, A.G. Wollny, C. A. Brock, C. Warneke, J.A. de Gouw, Eliot Atlas, J.A. Neuman, J.S. Holloway, B.M. Lerner, E.J. Williams, W.C. Kuster,
P.D. Goldan, W.M. Angevine, M.Trainer, F.C. Fehsenfeld and A. R. Ravishankara (2007)
"Vertical profiles in NO3 and N2O5 measured from an aircraft: Results from the NOAA P3 and surface platforms during NEAQS 2004"
J. Geophys. Res.-Atmos. 112, D22304, doi: 10.1029/2007JD008883.

12. T. Baynard, E. Lovejoy, A. Pettersson, S.S. Brown, D. Lack, H. Osthoff, P. Massoli, S.J. Ciciora,
W.P. Dubé, and A.R. Ravishankara (2007)
"Design and application of a pulsed cavity ring-down aerosol extinction spectrometer for field measurements"
Aerosol Sci. Technol. 41(4), 447-462,  doi: 10.1080/02786820701222801.

11. S.S. Brown, W.P. Dubé, H.D. Osthoff, D.E. Wolfe, W.M. Angevine, and A.R. Ravishankara (2007) "High resolution vertical distributions of NO3 and N2O5  through the nocturnal boundary layer" Atmos. Chem. Phys. 7(1), 139-149, doi: 10.5194/acp-7-139-2007.

10. H.D. Osthoff, R. Sommariva, T. Baynard, A. Pettersson, E.J. Williams, B.M. Lerner, J.M. Roberts,
H. Stark, P. Goldan, W.C. Kuster, T.S. Bates, D. Coffman, A.R. Ravishankara, and S.S. Brown (2006)
"Observation of daytime N2O5 in the marine boundary layer during NEAQS-ITCT 2004"
J. Geophys. Res.-Atmos. 111, D23S14, doi: 10.1029/2006JD007593.

8. H.D. Osthoff, S.S. Brown, T.B Ryerson, T.J. Fortin, B.M. Lerner, E.J. Williams, A. Pettersson,
T. Baynard, W.P. Dubé, S.J. Ciciora, and A.R. Ravishankara (2006)
"Measurement of atmospheric NO2 by pulsed cavity ring-down spectroscopy"
J. Geophys. Res.-Atmos. 111, D12305, doi: 10.1029/2005JD006942.

7. W.P. Dubé, S.S. Brown, H.D. Osthoff, M.R. Nunley, S.J. Ciciora, M.W. Paris, R.J. McLaughlin, and A.R. Ravishankara (2006)
"An aircraft instrument for simultaneous, in-situ measurement of NO3 and N2O5 via pulsed cavity ring-down spectroscopy"
Rev. Sci. Instrum. 77(3), 034101, doi: 10.1063/1.2176058.

6. S.S. Brown, H.D. Osthoff, H. Stark, W.P. Dubé, T.B. Ryerson, C. Warneke, J.A. de Gouw,
A.G. Wollny, D.D. Parrish, F.C. Fehsenfeld, and A.R. Ravishankara (2005)
"Aircraft observations of daytime NO3 and N2O5 and their implications for tropospheric chemistry"
J. Photochem. Photobiol. A 176(1-2), 270-278, doi: 10.1016/j.jphotochem.2005.10.004.

9. H.D. Osthoff and W. Jäger (2006)
"Mid-infrared spectrum of the weakly bound complex CO2 -SO2 "
Molecul. Phys. 104(18), 2861-2869, doi: 10.1080/00268970600862248.

5. H.D. Osthoff, J. Walls, W.A. van Wijngaarden and W. Jäger (2004)
"An Axial Molecular-Beam Mid-Infrared Diode Laser Spectrometer"
Rev. Sci. Instrum. 75(1), 46-53, doi: 10.1063/1.1634364.

4. H.D. Osthoff, J. Walls, W.A. van Wijngaarden, and W. Jäger (2002)
"Axial molecular-beam mid-infrared diode laser spectrometer"
in Diode Lasers and Applications in Atmospheric Sensing, Proceedings of SPIE 4817, 249-257, doi: 10.1117/12.456560.

1. H.D. Osthoff, K. Sujino, M.M. Palcic, and N.J. Dovichi (2000)
"Effect of amine modifiers on the separation of tetramethylrhodamine-labeled mono- and oligosaccharides by capillary zone electrophoresis"
J. Chromatogr. A 895(1-2), 285-290, doi: 10.1016/S0021-9673(00)00662-2.

3. J. Morrison, H. Osthoff and P. Wan (2002)
"Photoredox, photodecarboxylation, and photo-retro-Aldol chemistry of p-nitrobiphenyls"
Photochem. Photobiol. Sci. 1(6), 384-394, doi: 10.1039/B201087A.

2. J. Morrison, H. Osthoff and P. Wan (2002)
"Enhanced Photochemistry of the nitrobiphenyl chromophore"
Photochem. Photobiol. Sci. 1(1), 22-23, doi: 10.1039/B108748G.