Room-Temperature Luminescence of Formaldehyde-Condensed Amines Adsorbed on Filter Paper

✍ Scribed by C.B. Bruxvoort; G.G. Dawson; T.A. Francis; W.S. Reiter; C.H. Haustein

• Book ID: 102614821
• Publisher: Elsevier Science
• Year: 1993
• Tongue: English
• Weight: 405 KB
• Volume: 47
• Category: Article
• ISSN: 0026-265X
• DOI: 10.1006/mchj.1993.1024

✦ Synopsis

The luminescence of tryptophan, dopamine, and epinephrine adsorbed on filter paper and condensed by the aluminum formaldehyde (ALFA) histoluminescence method is reported. The resultant luminescence is a short-lived phosphorescence or long-lived fluorescence which is partially dependent on the inhibition of oxygen quenching by aluminum. Attempts to condense the amines by the formaldehyde (FA) method were not successful. Filter paper is a surface that can potentially be used for histochemical modeling and the influence of albumin and pH on such models is discussed. The room temperature phosphorescence characteristics of tryptophan, dopamine, epinephrine, tryptamine, and 5-methoxytryptamine are compared with the luminescence of the condensed amines. C 1993 Academic Press, Inc.