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Protonation of porphyrins in liquid PVC membranes: Effects of anionic additives and application to pH-sensing

Papkovsky, Dmitri B. and Ponomarev, Gelii V. and Wolfbeis, Otto S. (1997) Protonation of porphyrins in liquid PVC membranes: Effects of anionic additives and application to pH-sensing. Journal of Photochemistry and Photobiology A: Chemistry 104 (1-3), pp. 151-158.

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Abstract

We report on a study on the protonation of representative porphyrins, metalloporphyrins, porphyrin-ketones and a Pd-porphyrin Schiff base in aqueous solution and when dissolved in plasticized PVC membranes. The respective protolytic forms were characterized by absorption and emission spectra as well as apparent pKa values. It is shown that the protonation of porphyrins dissolved in PVC membranes ...

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Item Type:Article
Date:April 1997
Institutions:Chemistry and Pharmacy > Institut für Analytische Chemie, Chemo- und Biosensorik > Chemo- und Biosensorik (Prof. Otto S. Wolfbeis)
Identification Number:
ValueType
10.1016/S1010-6030(97)04592-9DOI
Keywords:Prophyrins; Protonation; pKa values; Plasticized PVC membranes; Optical pH sensors
Subjects:500 Science > 540 Chemistry & allied sciences
Status:Published
Refereed:Unknown
Created at the University of Regensburg:Unknown
Owner: Petra Gürster
Deposited On:18 Jul 2011 10:15
Last Modified:13 Mar 2014 17:41
Item ID:21492
Owner Only: item control page
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