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University of California Irvine

PTR-TOF 1000 ultra

Affiliation: University of California Irvine, USA

IONICON instrument: PTR-TOF 1000 ultra

Contact person: Prof. Alex Guenther

“Why is an IONICON PTR-MS very well suited for your measurement tasks?”

Prof. Guenther told us: "During the past two decades, the continued development of IONICON PTRMS systems has led to a steady advancement of our research capabilities resulting in important scientific discoveries as well as providing a large share of the biosphere-atmosphere VOC exchange measurements we have used as the basis for developing VOC emission models for air quality and climate models. In addition to the outstanding performance of their instruments, the excellent support and collaborative environment at IONICON have been critical to the success of our research program."

Most relevant scientific papers and conference presentations:

Kaser, L., T. Karl, B. Yuan, R. L. Mauldin, C. A. Cantrell, A. B. Guenther, E. G. Patton, A. J. Weinheimer, C. Knote, J. Orlando, L. Emmons, E. Apel, R. Hornbrook, S. Shertz, K. Ullmann, S. Hall, M. Graus, J. de Gouw, X. Zhou and C. Ye (2015). "Chemistry – turbulence interactions and mesoscale variability influence the cleansing efficiency of the atmosphere." Geophysical Research Letters: 2015GL066641.
Kim, S., A. Guenther, B. Lefer, J. Flynn, R. Griffin, A. P. Rutter, L. Gong and B. K. Cevik (2015). "Potential Role of Stabilized Criegee Radicals in Sulfuric Acid Production in a High Biogenic VOC Environment." Environmental Science & Technology 49(6): 3383-3391.
Misztal, P. K., C. N. Hewitt, J. Wildt, J. D. Blande, A. S. D. Eller, S. Fares, D. R. Gentner, J. B. Gilman, M. Graus, J. Greenberg, A. B. Guenther, A. Hansel, P. Harley, M. Huang, K. Jardine, T. Karl, L. Kaser, F. N. Keutsch, A. Kiendler-Scharr, E. Kleist, B. M. Lerner, T. Li, J. Mak, A. C. Nölscher, R. Schnitzhofer, V. Sinha, B. Thornton, C. Warneke, F. Wegener, C. Werner, J. Williams, D. R. Worton, N. Yassaa and A. H. Goldstein (2015). "Atmospheric benzenoid emissions from plants rival those from fossil fuels." Scientific Reports 5: 12064.
Seco, R., T. Karl, A. Guenther, K. P. Hosman, S. G. Pallardy, L. Gu, C. Geron, P. Harley and S. Kim (2015). "Ecosystem-scale volatile organic compound fluxes during an extreme drought in a broadleaf temperate forest of the Missouri Ozarks (central USA)." Global Change Biology 21(10): 3657-3674.
Greenberg, J. P., Peñuelas, J., Guenther, A., Seco, R., Turnipseed, A., Jiang, X., Filella, I., Estiarte, M., Sardans, J., Ogaya, R., Llusia, J., and Rapparini, F.: A tethered-balloon PTRMS sampling approach for surveying of landscape-scale biogenic VOC fluxes, Atmos. Meas. Tech., 7, 2263-2271, doi:10.5194/amt-7-2263-2014, 2014.
Misztal, P.K., Karl, T., Weber, R., Jonsson, H.H., Guenther, A.B. and Goldstein, A.H. (2014) Airborne flux measurements of biogenic isoprene over California. Atmos. Chem. Phys. 14(19), 10631-10647.