Title of article
Direct determination of ethanol in drinks based on fluorescence quenching of thioglycolicacid (TGA) capped cadmium sulfide (CdS) quantumdots (QDs)
Author/Authors
Abolhasani، Jafar نويسنده Department of Chemistry, Tabriz branch, Islamic Azad University, Tabriz, Iran Abolhasani, Jafar , Ghorbani-Kalhor، Ebrahim نويسنده Department of Chemistry, Tabriz branch, Islamic Azad University, Tabriz, Iran. Ghorbani-Kalhor, Ebrahim , Hassanzadeh، Javad نويسنده Department of Chemistry, Tabriz branch, Islamic Azad University, Tabriz, Iran. Hassanzadeh, Javad , Hoseini، Seyedeh Batool نويسنده Department of Chemistry, Tabriz branch, Islamic Azad University, Tabriz, Iran. Hoseini, Seyedeh Batool
Issue Information
فصلنامه با شماره پیاپی 4 سال 2013
Pages
4
From page
213
To page
216
Abstract
In this studya simple and very sensitive method was proposed fordetermination of traceamounts of ethanol in drinks based on fluorescence quenching of thioglycolic acid (TGA) capped cadmium sulfide (CdS) quantum dots (QDs). The quenching mechanismis attributed to the non-radiative recombination due to the esterification reaction that occurs between ethanol and carboxylicgroup of TGA.The determination of ethanol was carried out in samples by recording the emission fluorescence intensity at555 nm (lex= 427 nm). Under optimum conditions a wide linear dynamic rang was obtained between 9.2 × 10-2 and 9.2ng/l for ethanol. The proposed method was successfully applied to the determination of ethanol in real samples including white wine; red wine and Delesterdrink (Iranian beer).
Journal title
Journal of Environmental Treatment Techniques
Serial Year
2013
Journal title
Journal of Environmental Treatment Techniques
Record number
1039051
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