Bioaccessibility study and simultaneous quantification of endocrine disruptors (bisphenol A and phthalates) in utensils and toys for infants using HPLC-UV

Author(s)

de Lima, Gabriel Acioly ^[1] ; Santos, Jandyson Machado ^[1] ; Paim, Ana Paula S. ^[2] ; Lavorante, Andre F. ^[1]

Affiliation

^[1] Univ Fed Rural Pernambuco UFRPE, Dept Quim, Rua Dom Manuel Medeiros S-N, BR-52171900 Recife, PE - Brazil

^[2] Univ Fed Pernambuco UFPE, Dept Quim Fundamental, Av Jornalista Anibal Fernandes, S-N Cidade Univ, BR-50740560 Recife, PE - Brazil

• Document type: Journal article
• Source: CHEMICAL PAPERS; v. 76, n. 1 SEP 2021.
• Web of Science Citations: 0

Abstract

This work aims to develop a method for the determination of simultaneous bisphenol A, dibutyl phthalates (DBP), bis-2-ethylhexyl (DEHP), di-n-octyl (DNOP) and diisodecyl (DIDP) in utensils and toys intended for infants, as well as to evaluate the bioaccessibility of these compounds in artificial saliva. For this purpose, we applied an optimization design of experiments (DOE) for extraction using ultrasound-assisted liquid and detection by high-performance liquid chromatography (HPLC). The method was validated, finding detection limits of 0.0035-0.0512 mg L-1 for bisphenol A and the phthalates analyzed, linear range from 5 to100 mg L-1 (R-2 = 0.9989) and 0.5-10 mg L-1 (R-2 = 0.9993) for DIDP and other analytes, respectively. Extraction in an ultrasonic system was performed with chloroform and optimized with a 2(4) full factorial design, defined as 1.50 g of sample in 10 mL of chloroform, extraction time of 20 min and temperature at 65 degrees C. Matrix effect tests showed that the method did not suffer this type of interference; recovery studies showed values from 74.1 to 114.9%, with relative standard deviations (RSD) less than 9.34% (n = 5). Ten samples of toys and utensils for infants were analyzed using the optimized method, and the results presented concentrations between 0.09 and 30.8 mg Kg(-1) and 0.060 and 21.13 mg Kg(-1) for phthalate and bisphenol A, respectively. Migration tests with artificial saliva were performed showing concentrations between 0.06 and 10.3 mg Kg(-1) and 0.01 and 0.3 mg Kg(-1) for phthalates and bisphenol A, respectively. (AU)

• FAPESP's process: 14/50951-4 - INCT 2014: Advanced Analytical Technologies
• Grantee: Celio Pasquini
• Support Opportunities: Research Projects - Thematic Grants