Document Detail


Application of Tb(4)O(7) nanoparticles for lasalocid and salicylate determination in food analysis.
MedLine Citation:
PMID:  23140477     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The usefulness of Tb(4)O(7) nanoparticles (NPs) as analytical reagents using sensitized luminescence as detection system is described for the first time and the results obtained are compared with those obtained using Tb(III) ions. Two drugs used in veterinary practice, namely lasalocid (LAS) and salicylate (SAL), have been chosen as model analytes to carry out this study. The experimental conditions for these systems have been optimized and their analytical features obtained. The detection limits obtained for LAS and SAL using Tb(4)O(7)NPs were 1.0 and 4.0 ng mL(-1), respectively, which were comparable to those obtained using Tb(III) ions: 1.8 and 1.0 ng mL(-1), respectively. However, precision data, with relative standard deviation values in the range 2.3 - 3.8 % using the NPs and 3.5 - 6.5 % using Tb(III) ions, were slightly better for LAS with Tb4O7NPs. The practical analytical usefulness of Tb(4)O(7)NPs as luminescent reagents has been shown by performing the determination of LAS in tap water, feed premix and egg samples, obtaining recoveries in the range of 80.0 - 105.0%.
Authors:
Maria Luisa Castillo-García; Maria-Paz Aguilar-Caballos; Agustina Gomez-Hens
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-11-12
Journal Detail:
Title:  Journal of agricultural and food chemistry     Volume:  -     ISSN:  1520-5118     ISO Abbreviation:  J. Agric. Food Chem.     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-11-12     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0374755     Medline TA:  J Agric Food Chem     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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