Reduced Fluorescence from Tris-(8-quinolinolato) Aluminum(III) in the Presence of Its Fe(III) Analog
Abstract:Chloroform (CHCl3) solutions of tris(8-quinolinolato) Al(III) (AlQ3), when excited at 395 nm, fluoresce at 520 nm. Addition of tris(8-quinolinolato) Fe(III) (FeQ3) to these solutions decreases the fluorescence: the ratio of the fluorescent intensity in the presence of FeQ3, to that in its absence, is exponentially related to [FeQ3] and independent of [AlQ3]. We hypothesized that the main cause of this effect was FeQ3 absorption of the exciting and emitted radiations. The hypothesis was tested in two ways: first, by calculating fluorescence losses using FeQ3 absorbance measured at 395 and 520 nm; and second, by measuring fluorescence losses when the AlQ3 was in one optical cell, and the FeQ3 in others, which were located in either the excitation or emission paths, or both. Comparison between all the results showed that they were not significantly different (P0.01), thus verifying the hypothesis.
Document Type: Research Article
Affiliations: New South Wales Department of Agriculture, Biological and Chemical Research Institute, P.M.B. 10, Rydalmere, 2116, Australia
Publication date: May 1, 1979
More about this publication?
- The Society publishes the internationally recognized, peer reviewed journal, Applied Spectroscopy, which is available both in print and online. Subscriptions are included with membership or can be purchased by institutional or corporate organizations. Abstracts may be viewed free of charge. Previously published as Bulletin (Society for Applied Spectroscopy)
- Editorial Board
- Information for Authors
- Submit a Paper
- Subscribe to this Title
- Membership Information
- Request copyrighted SAS materials
- Spectroscopic Nomenclature
- Focal Point (Open Access)
- ingentaconnect is not responsible for the content or availability of external websites