NISCAIR Online Periodicals Repository

NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR)  >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Chemistry -Section A (IJC-A) >
IJC-A Vol.46A [2007] >
IJC-A Vol.46A(11) [November 2007] >


Title: Determination of Eu(III) based on fluorescence and cofluorescence enhancement of Eu(III)-Tb(III)-tetracycline-citrate system
Authors: Wang, Xiaoli
Zhao, Huichun
Jin, Linpei
Issue Date: Nov-2007
Publisher: CSIR
IPC CodeInt. Cl. ⁸ G01N21/64
Abstract: A new sensitized cofluorescence system has been developed for the determination of Eu(III) based on its complex formation with tetracycline (TC) in the presence of citrate and Tb(III). Eu(III) forms complex with tetracycline in alkaline condition which emits intrinsic fluorescence of Eu(III) when excited. The fluorescence intensity of Eu(III)TC is enhanced about 5 times when citrate and Tb(III) are introduced. The factors that influence the fluorescence intensity of the system have been studied in detail. Under optimum conditions, the relative fluorescence intensity is linear in over the range 6.0×10⁻⁹ to 4.0×10⁻⁶ M of Eu(III). The detection limit has been found to be 1.4×10⁻⁹ M of Eu(III). The method has been used for the determination of Eu in two rare earth samples with relative error 4.5% and -1.8%, and RSD 2.6% and 2.1%, respectively.
Page(s): 1801-1804
ISSN: 0376-4710
Source:IJC-A Vol.46A(11) [November 2007]

Files in This Item:

File Description SizeFormat
IJCA 46A(11) 1801-1804.pdf104.03 kBAdobe PDFView/Open
 Current Page Visits: 669 
Recommend this item

 

National Knowledge Resources Consortium |  NISCAIR Website |  Contact us |  Feedback

Disclaimer: NISCAIR assumes no responsibility for the statements and opinions advanced by contributors. The editorial staff in its work of examining papers received for publication is helped, in an honorary capacity, by many distinguished engineers and scientists.

CC License Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India

Copyright © 2012 The Council of Scientific and Industrial Research, New Delhi. All rights reserved.

Powered by DSpace Copyright © 2002-2007 MIT and Hewlett-Packard | Compliant to OAI-PMH V 2.0

Home Page Total Visits: 606865 since 06-Feb-2009  Last updated on 31-Oct-2014Webmaster: nopr@niscair.res.in