Moorthy, Jarugu N. ; Shevchenko, Tatiana ; Magon, Angela ; Bohne, Cornelia (1998) Paper acidity estimation: application of pH-dependent fluorescence probes Journal of Photochemistry and Photobiology A: Chemistry, 113 (2). pp. 189-195. ISSN 1010-6030
Full text not available from this repository.
Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/S1010-6030(97)00332-8
Abstract
The use of pH-dependent fluorescence probes for paper acidity estimation has been explored. The changes in emission properties of the four probes (quinine bisulphate, fluorescein, pyranine and SNAFL-1, a seminaphthofluorescein dye) in buffer solutions of varying pHs are found to correlate with the respective changes observed for the probes applied on paper samples of varying acidity. The remarkable correlations suggest that the paper acidity ('pHapp') can be inferred by extrapolating the probe behavior on paper samples to that in aqueous solutions of varying pHs. Thus, with a judicious choice of pH-dependent fluorescence probes, a wider range of pH indicators of paper acidity are possible to be developed. This methodology promises a non-destructive alternative to measure acidity of paper.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Fluorescence Probe; Paper Acidity; pH Indicator |
| ID Code: | 60765 |
| Deposited On: | 10 Sep 2011 11:33 |
| Last Modified: | 10 Sep 2011 11:33 |
Repository Staff Only: item control page
