Sensitive and Rapid Reversed-Phase Liquid Chromatography–Fluorescence Method for Determining Bisphenol A Diglycidyl Ether in Aqueous–Based Food Simulants

1991 ◽  
Vol 74 (6) ◽  
pp. 925-928 ◽  
Author(s):  
P Paseiro Losada ◽  
P López Mahia ◽  
L Vázquez Odériz ◽  
J Simal Lozano ◽  
J Simal Gándara

Abstract A method has been developed for determination of bisphenol A diglycidyl ether (BADGE) in 3 aqueous-based food simulants: water, 15% (v/v) ethanol, and 3% (w/v) acetic acid. BADGE is extracted with C18 cartridges and the extract Is concentrated under a stream of nitrogen. BADGE is quantltated by reversed-phase liquid chromatography with fluorescence detection. Relative precision at 200 μg/L was 3.4%, the detection limit of the method was 0.1 μg/L, and recoveries of spiking concentrations from 1 to 8 μg/L were nearly 100%. Relative standard deviations for the method ranged from 3.5 to 5.9%, depending on the identity of the spiked aqueousbased food simulant.

2008 ◽  
Vol 56 (22) ◽  
pp. 10633-10637 ◽  
Author(s):  
Lucia Grumetto ◽  
Domenico Montesano ◽  
Serenella Seccia ◽  
Stefania Albrizio ◽  
Francesco Barbato

1999 ◽  
Vol 82 (3) ◽  
pp. 579-585 ◽  
Author(s):  
Charles A Scott ◽  
Durand W Yordy ◽  
Mark R Coleman

Abstract Avilamycin was extracted from feed with acetonitrile. Isolation of avilamycin factors from feed matrix interference was accomplishedby normal phase solid-phase extraction with silica as sorbent. Reversed-phase liquid chromatography was subsequently used to separate and quantitate the primary biologically activefactors A and B for determination of chemical potency. This method combines specificity for avilamycins A and B in poultry feeds with simple sample preparation that removes matrix interferences. Recoveries of factor A ranged from 93.29 to 97.26%, with precision (relative standard deviation) ranging from 1.1to 3.4%. Avilamycin factors in feed samples tested ranged from 4.45 to 17.82 μg/g for factor A and from 0.80 to 3.18 μg/g for factor B.


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