Determination of urinary bisphenol A by coacervative microextraction and liquid chromatography–fluorescence detection

2008 ◽  
Vol 630 (1) ◽  
pp. 19-27 ◽  
Author(s):  
Amalia García-Prieto ◽  
Mª Loreto Lunar ◽  
Soledad Rubio ◽  
Dolores Pérez-Bendito
Coatings ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 624
Author(s):  
Fernanda Vilarinho ◽  
Antia Lestido-Cardama ◽  
Raquel Sendón ◽  
Ana Rodríguez Bernaldo de Quirós ◽  
Maria de Fátima Vaz ◽  
...  

Bisphenol A (BPA) is one of the chemicals used to produce both polycarbonate plastics and epoxy resin coatings. Research has shown that small amounts of BPA can migrate into the foods and beverages enclosed in these types of containers. In this research, an analytical method based on high-performance liquid chromatography with fluorescence detection (HPLC-FLD) was developed and validated for the determination of BPA in canned vegetables. The results were confirmed by liquid chromatography coupled to tandem mass spectrometry (LC-MS/MS). Attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR) was performed, to identify the coating material of each tin can. Nineteen cans of vegetables were taken as study samples (eleven samples from the Spanish market, and eight samples from the Portuguese market). Excellent linear correlation (r2 = 0.9999) was observed over the range of 0.01 to 0.25 mg/L. Limit of detection (LOD) and limit of quantification (LOQ) values were calculated to be 0.005 mg/kg and 0.01 mg/kg, respectively. Good recoveries, between 72% and 90% were obtained at three different levels of concentration (RSD% = 4.6). BPA was not detected in the samples. The proposed HPLC-FLD was found to be suitable for the determination of BPA in canned vegetables.


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