|
1
|
Müller M, Graus M, Ruuskanen TM, Schnitzhofer R, Bamberger I, Kaser L, Titzmann T, Hörtnagl L, Wohlfahrt G, Karl T, Hansel A. First eddy covariance flux measurements by PTR-TOF. Atmos Meas Tech 2010; 3:387-395. [PMID: 24465280 PMCID: PMC3898015 DOI: 10.5194/amt-3-387-2010] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
The recently developed PTR-TOF instrument was evaluated to measure methanol fluxes emitted from grass land using the eddy covariance method. The high time resolution of the PTR-TOF allowed storing full mass spectra up to m/z 315 with a frequency of 10 Hz. Three isobaric ions were found at a nominal mass of m/z 33 due to the high mass resolving power of the PTR-TOF. Only one of the three peaks contributed to eddy covariance fluxes. The exact mass of this peak agrees well with the exact mass of protonated methanol (m/z 33.0335). The eddy covariance methanol fluxes measured with PTR-TOF were compared to virtual disjunct eddy covariance methanol fluxes simultaneously measured with a conventional PTR-MS. The methanol fluxes from both instruments show excellent agreement.
Collapse
Affiliation(s)
- M. Müller
- Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck, Innsbruck, Austria
- Ionicon Analytik, Innsbruck, Austria
| | - M. Graus
- Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck, Innsbruck, Austria
| | - T. M. Ruuskanen
- Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck, Innsbruck, Austria
| | - R. Schnitzhofer
- Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck, Innsbruck, Austria
- Ionicon Analytik, Innsbruck, Austria
| | - I. Bamberger
- Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck, Innsbruck, Austria
| | - L. Kaser
- Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck, Innsbruck, Austria
| | - T. Titzmann
- Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck, Innsbruck, Austria
| | - L. Hörtnagl
- Institut für Ökologie, Universität Innsbruck, Innsbruck, Austria
| | - G. Wohlfahrt
- Institut für Ökologie, Universität Innsbruck, Innsbruck, Austria
| | - T. Karl
- Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck, Innsbruck, Austria
- Atmospheric Chemistry Division, National Center for Atmospheric Research, Boulder, CO 80307, USA
| | - A. Hansel
- Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck, Innsbruck, Austria
| |
Collapse
|
|
3
|
Titzmann T, Peter RU, Thoma E, Ruzicka T. [Pigmented basalioma as pseudomelanoma of the breast]. Hautarzt 1991; 42:459-60. [PMID: 1938399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
We report on a patient with a pigmented basal cell carcinoma of the nipple. Despite its rarity, it is important to know about this tumour because it is so easy to confuse it with malignant melanoma.
Collapse
Affiliation(s)
- T Titzmann
- Dermatologische Klinik und Poliklinik, Ludwig-Maximilians-Universität München
| | | | | | | |
Collapse
|