Document Detail

Simultaneous spectrophotometric determination of benzoic acid, sorbic acid, and ascorbic acid using a net analyte signal-based method.
MedLine Citation:
PMID:  20166599     Owner:  NLM     Status:  MEDLINE    
The net analyte preprocessing/classical least-squares (NAP/CLS) method is a simple chemometric method that has been used for the simultaneous spectrophotometric determination of benzoic acid, sorbic acid, and ascorbic acid. The obtained results indicated that the performances of the NAP/CLS and partial least-squares methods were almost identical. The net analyte signal (NAS) concept was also used to calculate multivariate analytical figures of merit, such as LOD, selectivity, and sensitivity. Wavelength selection was applied based on the concept of NAS regression, and improved the method performance in samples containing nonmodeled interferences. The method afforded recoveries in the range of 98-105%. The proposed method was successfully applied to determination of the analytes in an Iranian soft drink.
Abdolhossein Naseri; Ebrahim Ghorbani-Kalhor; Javad Vallipour; Samira Jafari; Gholam Hossein Shahverdizadeh; Karim Asadpour-Zeynali
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of AOAC International     Volume:  92     ISSN:  1060-3271     ISO Abbreviation:  J AOAC Int     Publication Date:    2009 Nov-Dec
Date Detail:
Created Date:  2010-02-19     Completed Date:  2010-03-22     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9215446     Medline TA:  J AOAC Int     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1807-14     Citation Subset:  IM    
Islamic Azad University, Faculty of Science, Department of Chemistry, Tabriz Branch, Tabriz, PO Box 1655, Iran.
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MeSH Terms
Ascorbic Acid / analysis*
Benzoic Acid / analysis*
Beverages / analysis
Food Preservatives / analysis*
Indicators and Reagents
Least-Squares Analysis
Multivariate Analysis
Reproducibility of Results
Sorbic Acid / analysis*
Spectrophotometry, Ultraviolet
Reg. No./Substance:
0/Food Preservatives; 0/Indicators and Reagents; 0/Solutions; 110-44-1/Sorbic Acid; 50-81-7/Ascorbic Acid; 65-85-0/Benzoic Acid

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