Absorption and Emission Characteristics of 7-Hydroxycoumarin and 1-Hydroxypyrene-3,6,8-trisulfonate in Water/Oil Microemulsion with Reference to the Determination of the Interfacial and Bulk pH of the Water Pool

The absorption and emission characteristics of 7-hydroxycoumarin (HCM) and 1-hydroxypyrene-3,6,8-trisulfonate (HPTS) have been studied in the water/oil microemulsion systems formed with AOT, BuOH, heptane, and decane as components. The absorption and emission features of HCM and HPTS have been corre...

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Bibliographic Details
Published in:Journal of colloid and interface science 2001-12, Vol.244 (1), p.145-153
Main Authors: Biswas, Soma, Bhattacharya, Subhash C., Bhowmik, Binoy B., Moulik, Satya P.
Format: Article
Language:English
Subjects:
1-hydroxypyrene-3,6,8-trisulfonate
7-hydroxycoumarin
absorption
AOT
Chemistry
Colloidal state and disperse state
emission
Emulsions. Microemulsions. Foams
Exact sciences and technology
General and physical chemistry
microemulsion
pool pH
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Summary:The absorption and emission characteristics of 7-hydroxycoumarin (HCM) and 1-hydroxypyrene-3,6,8-trisulfonate (HPTS) have been studied in the water/oil microemulsion systems formed with AOT, BuOH, heptane, and decane as components. The absorption and emission features of HCM and HPTS have been correlated with the pH of buffer solutions to ascertain the pH of the oil/water interface and the interior of the water pool.
ISSN:0021-9797
1095-7103
DOI:10.1006/jcis.2001.7919