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Determination of safranine T in food samples by CTAB sensitised fluorescence quenching method of the derivatives of calix[4]arene.
MedLine Citation:
PMID:  23870949     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
In this paper, the interaction of safranine T (ST) and calix[4]arene (4,10,16,22-tetramethoxylresorcinarene carboxylic acid derivatives (TRCA)) was investigated with fluorescence spectroscopy. The results was shown that the fluorescence intensity of TRCA could be quenched by ST, and the fluorescence quenching (ΔF=FTRCA-FST-TRCA) was sensitised in cetyltrimethyl ammonium bromide (CTAB). Under the optimal conditions, the linear range of calibration curve for the determination of ST was 0.10-4.00μg/mL. The detection limit and RSD was 0.034μg/mL, 2.30% (n=3). The quantum yield (Yu) of ST was approximately 2.0 times higher in the presence of CTAB than that in the absence of CTAB. The method has been applied for the determination of ST in food samples with satisfactory results.
Authors:
Wenjun Wang; Xiashi Zhu; Chaoguo Yan
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Publication Detail:
Type:  Journal Article     Date:  2013-05-17
Journal Detail:
Title:  Food chemistry     Volume:  141     ISSN:  0308-8146     ISO Abbreviation:  Food Chem     Publication Date:  2013 Dec 
Date Detail:
Created Date:  2013-07-22     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7702639     Medline TA:  Food Chem     Country:  England    
Other Details:
Languages:  eng     Pagination:  2207-12     Citation Subset:  IM    
Copyright Information:
Copyright © 2013 Elsevier Ltd. All rights reserved.
Affiliation:
College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, PR China.
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