Document Detail

A quick method for the simultaneous determination of ascorbic acid and sorbic acid in fruit juices by capillary zone electrophoresis.
MedLine Citation:
PMID:  18969870     Owner:  NLM     Status:  In-Data-Review    
A method of quickly determining ascorbic acid and sorbic acid by capillary zone electrophoresis with ultraviolet detection was developed. The choice of background electrolyte, wavelength, injection time and applied voltage were discussed. Ascorbic acid and sorbic acid were well separated in 80mmolL(-1) boric acid-5mmolL(-1)borax (pH = 8.0) in 5min at the detecting wavelength of 270nm. Under the optimum condition, the method has linear ranges of 2.54-352.00mgL(-1) for ascorbic acid and 1.08-336.39mgL(-1) for sorbic acid with the detection limit of 1.70mgL(-1) for ascorbic acid and 0.54mgL(-1) for sorbic acid, respectively. Other organic acids in fruit juices have no effect on the detection. This method is very feasible and simple and can be used to detect ascorbic acid and sorbic acid in fruit juices.
Yajun Tang; Mingjia Wu
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Talanta     Volume:  65     ISSN:  1873-3573     ISO Abbreviation:  Talanta     Publication Date:  2005 Feb 
Date Detail:
Created Date:  2008-10-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  2984816R     Medline TA:  Talanta     Country:  England    
Other Details:
Languages:  eng     Pagination:  794-8     Citation Subset:  -    
National Analytical Research Center of Electrochemistry and Spectroscopy, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5256 Renmin Street, Changchun 130022, PR China.
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