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Effervescence-assisted dispersive liquid-liquid microextraction method using a solid effervescent agent as a novel dispersion technique for the analysis of fungicides in apple juice.
MedLine Citation:
PMID:  25136817     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
A novel effervescence-assisted dispersive liquid-liquid microextraction method has been developed for the determination of four fungicides in juice samples. In this method, a solid effervescent agent is added into samples to assist the dispersion of extraction solvent. The effervescent agent is environmentally friendly and only produces an increase in the ionic strength and a negligible variation in the pH value of the aqueous sample, which does not interfere with the extraction of the analytes. The parameters affecting the extraction efficiency were investigated including the composition of effervescent agent, the effervescent agent amount, the formulation of effervescent agent, the adding mode of effervescent agent, the type and volume of extraction solvent, and the pH. Under optimized conditions, the method showed a good linearity within the range of 0.05-2 mg L(-1) for pyrimethanil, fludioxonil, and cyprodinil, and 0.1-4 mg L(-1) for kresoxim-methyl , with the correlation coefficients higher than 0.998. The limits of detection for the method ranged between 0.005 and 0.01 mg L(-1) . The recoveries of the target fungicides in apple juice samples were in the range of 72.4-110.8% with the relative standard deviations ranging from 1.2-6.8%. This article is protected by copyright. All rights reserved.
Authors:
Wenqing Jiang; Xiaochu Chen; Fengmao Liu; Xiangwei You; Jiaying Xue
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-8-18
Journal Detail:
Title:  Journal of separation science     Volume:  -     ISSN:  1615-9314     ISO Abbreviation:  J Sep Sci     Publication Date:  2014 Aug 
Date Detail:
Created Date:  2014-8-19     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101088554     Medline TA:  J Sep Sci     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
This article is protected by copyright. All rights reserved.
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