Document Detail


Determination of bisphenol A in food-simulating liquids using LCED with a chemically modified electrode.
MedLine Citation:
PMID:  11312818     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Liquid chromatography with electrochemical detector (LC-ED), using a chemically modified electrode coated with a metalloporphyrin film, is reported for determination of bisphenol A (BPA) migration from polycarbonate baby bottles. The extraction process of the samples was performed according to regulations of the Southern Common Market (MERCOSUR), where certain food-simulating liquids [(A) distilled water, (B) acetic acid 3% V/V in distilled water, and (C) ethanol 15% V/V in distilled water] are defined along with controlled time and temperature conditions. The baseline obtained using the naked electrode showed a considerable drift which increased the detection limit. This effect was suppressed with the chemically modified electrode. A linear range up to 450 ppb along with a detection limit of 20 ppb for the amperometric detection technique was observed. The procedure described herein allowed lowering the detection limit of the method to 0.2 ppb. The value found for BPA in the food-simulating liquid is 1.2 ppb, which is below the tolerance limit for specific migration (4.8 ppm).
Authors:
A D'Antuono; V C Dall'Orto; A Lo Balbo; S Sobral; I Rezzano
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of agricultural and food chemistry     Volume:  49     ISSN:  0021-8561     ISO Abbreviation:  J. Agric. Food Chem.     Publication Date:  2001 Mar 
Date Detail:
Created Date:  2001-04-23     Completed Date:  2001-06-21     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0374755     Medline TA:  J Agric Food Chem     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1098-101     Citation Subset:  IM    
Affiliation:
Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Junín 956, Buenos Aires (1113), Argentina.
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MeSH Terms
Descriptor/Qualifier:
Bottle Feeding* / instrumentation
Chromatography, High Pressure Liquid / methods
Electrochemistry / methods
Estrogens, Non-Steroidal / analysis*
Humans
Indicators and Reagents
Infant
Metalloporphyrins
Phenols / analysis*
Polymers*
Chemical
Reg. No./Substance:
0/Estrogens, Non-Steroidal; 0/Indicators and Reagents; 0/Metalloporphyrins; 0/Phenols; 0/Polymers; 24936-68-3/lexan; 80-05-7/bisphenol A

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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