| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10528731 | Analytica Chimica Acta | 2005 | 6 Pages |
Abstract
The optical response of the detectors was analysed by VIS absorption spectroscopy, since a change of colour took place when the detectors were submitted to different pH buffered solutions. With the aim to investigate their optical behaviour as a function of pH, several experimental measurements were undertaken: absorption intensity; maximum spectral wavelength; colour coordinates; colour purity percentages. Time response and memory effect were also studied. The detector operation conditions for monitoring environmental acidity both indoor and outdoor are discussed.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
M. GarcÃa-Heras, C. Gil, N. Carmona, J. Faber, K. Kromka, M.A. Villegas,