eprintid: 18175 rev_number: 28 eprint_status: archive userid: 938 dir: disk0/00/01/81/75 datestamp: 2015-03-06 10:35:50 lastmod: 2015-04-21 15:37:08 status_changed: 2015-03-06 10:35:50 type: conferenceObject metadata_visibility: show creators_name: Falkenroth, Achim creators_name: Herzog, Alexandra creators_name: Jähne, Bernd corp_creators: Institut für Umweltphysik, Universität Heidelberg corp_creators: Interdisziplinäres Zentrum für Wissenschaftliches Rechnen (IWR), Universität Heidelberg title: Visualization of air-water gas exchange using novel fluorescent dyes subjects: ddc-530 subjects: ddc-540 subjects: ddc-550 divisions: i-130500 divisions: i-708000 pres_type: paper cterms_swd: Fluoreszenz cterms_swd: Gasaustausch note: doi: 10.5281/zenodo.14844 abstract: Laser-Induced Fluorescence (LIF) techniques are applied to visualize air-water gas exchange across the aqueous mass boundary layer in wind/wave facilities. Dissolved oxygen is made visible by quenching of the fluorescence of an organic ruthenium complex (tris(4,7-diphenyl-1,10-phenanthroline disulfonic acid) ruthenium(II) dichloride, Ru(dpp ds)3), and acid or alkaline volatile species such as CO2, HCl or diethylamine by the fluorescent pH indicator 1-hydroxy pyrene-3,6,8-trisulfonic acid (HPTS). Fluorescence of both dyes can be stimulated by a 473 nm DPSS laser. The spectral peaks of the fluorescence emission (510 nm for HPTS and 610 nm for Ru(dpp ds)3) are different enough, so that the concentration fields of both dyes can be measured simultaneously using two cameras with different bandpass filters. The paper details the properties of the two dyes and demonstrates their usage with some preliminary visualization experiments. date: 2006-09-10 id_scheme: DOI id_number: 10.11588/heidok.00018175 ppn_swb: 1656036363 own_urn: urn:nbn:de:bsz:16-heidok-181750 language: eng bibsort: FALKENROTHVISUALIZAT20060910 full_text_status: public pages: 9 event_title: 12th Intern. Symp. on Flow Visualization event_location: Göttingen, Germany event_dates: 10-14 September 2006 citation: Falkenroth, Achim ; Herzog, Alexandra ; Jähne, Bernd (2006) Visualization of air-water gas exchange using novel fluorescent dyes. [Conference Item] document_url: https://archiv.ub.uni-heidelberg.de/volltextserver/18175/1/ISFV2006_Falkenroth.pdf