Abstract
Po2 optodes (Lübbers and Opitz, 1975) are based on fluorescence quenching of suitable indicator molecules, e.g. pyrenebutyric acid (PBA) (Vaughan and Weber, 1970; Knopp and Longmuir, 1972), by molecular oxygen within a membrane or boundary layer protected indicator film of about 10/um thickness. Fig. 1 shows a couple of O2-depen-dent corrected excitation spectra of PBA (λ em = 395 nm) in a silisensitivity is drastically enhanced at lower PO2 values for the indicator membrane, whereas for PO2 values > 100 Torr the sensitivity of the indicator solution would be more favourable.
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© 1984 Plenum Press, New York
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Opitz, N., Lübbers, D.W. (1984). Increased Resolution Power in Po2 Analysis at Lower Po2 Levels Via Sensitivity Enhanced Optical Po2 Sensors (Po2 Optodes) using Fluorescence Dyes. In: Bruley, D., Bicher, H.I., Reneau, D. (eds) Oxygen Transport to Tissue—VI. Advances in Experimental Medicine and Biology, vol 180. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-4895-5_25
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DOI: https://doi.org/10.1007/978-1-4684-4895-5_25
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