A NOVEL FLUORESCENCE SENSING MODE FOR IONS AND NEUTRAL MOLECULES BASED ON IONIC MICELLE MEDIATED TICT DUAL FLUORESCENCE

Authors
JIANG YB JIN MG LIN LR
Citation
Yb. Jiang et al., A NOVEL FLUORESCENCE SENSING MODE FOR IONS AND NEUTRAL MOLECULES BASED ON IONIC MICELLE MEDIATED TICT DUAL FLUORESCENCE, Spectroscopy letters, 30(8), 1997, pp. 1485-1493
Citations number
11
Categorie Soggetti
Spectroscopy
Journal title
Spectroscopy letters → ACNP
ISSN journal
00387010
Volume
30
Issue
8
Year of publication
1997
Pages
1485 - 1493
Database
ISI
SICI code
0038-7010(1997)30:8<1485:ANFSMF>2.0.ZU;2-H
Abstract
According to the high sensitivity of TICT (twisted intramolecular char ge transfer) emission to external electric field strength, a novel flu orescence sensing mode for ions and neutral molecules in aqueous solut ion was proposed by using ionic micelle mediated TICT dual fluorescenc e was proposed. In the sensing system the ionic micelle acts as electr ic field mediator for the TICT fluorophore. Examples were given for se nsing potassium nitrate, sodium dodecylsulfate, and beta-cyclodextrin by using sodium diethylaminobenzoate(SDEAB)/cetyltrimethylammonium bro mide(CTAB) micelle sensing system. Linear response of dual fluorescenc e intensity ratio Ia/Ib to analyte concentration with correlation coef ficient higher than 0.99 was observed for three analytes.