Application of a Novel Lipophilized Derivative of Rhodamine 19 in an Optical Sensor Suitable for Measurements of pH in Alkaline Regions

Miljanić, Snežana and Cimerman, Zvjezdana (2003) Application of a Novel Lipophilized Derivative of Rhodamine 19 in an Optical Sensor Suitable for Measurements of pH in Alkaline Regions. Croatica Chemica Acta, 76 (3). pp. 199-205. ISSN 0011-1643

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Abstract

An optical pH sensor based on the fluorescence of a new lipophilic rhodamine dye immobilized in a thin poly(vinyl chloride) membrane was developed. The response to hydrogen ions was a result of reversible changes in the molecular structure of rhodamine. Excited at 528 nm, the membrane fluoresced at 547 nm. The sensor system showed a usable sensitivity over the 9.5-11.9 pH range and very good reproducibility.

Item Type: Article
Keywords: rhodamine 19 octadecylamide; pH determination; fluorescence; optical sensor
Date: 2003
Subjects: NATURAL SCIENCES > Chemistry
Divisions: Faculty of Science > Department of Chemistry
Publisher: Hrvatsko kemijsko društvo
Related URLs:
Depositing User: mag. bibl. Ana Šafran
Date Deposited: 20 May 2014 08:40
Last Modified: 20 May 2014 08:40
URI: http://digre.pmf.unizg.hr/id/eprint/1494

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