Migration of bisphenol A into water from polycarbonate baby bottles during microwave heating.
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| Title: | Migration of bisphenol A into water from polycarbonate baby bottles during microwave heating. |
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| Authors: | Ehlert, K.A.1 (AUTHOR) karl.ehlert@tno.nl, Beumer, C.W.E.1 (AUTHOR), Groot, M.C.E.1 (AUTHOR) |
| Source: | Food Additives & Contaminants. Part A: Chemistry, Analysis, Control, Exposure & Risk Assessment. Jul2008, Vol. 25 Issue 7, p904-910. 7p. 3 Charts, 7 Graphs. |
| Subjects: | Systems migration, Dielectrics, Direct energy conversion, Electric heating, Microwave heating, Microwave devices, Radiation |
| Abstract: | A comprehensive migration database was established for bisphenol A from polycarbonate baby bottles into water during exposure to microwave heating. Eighteen different brands of polycarbonate baby bottles sold in Europe were collected. Initial residual content of bisphenol A and migration after microwave heating were determined. Residual content of bisphenol A in the polycarbonate baby bottles ranged from 1.4 to 35.3 mg kg-1. Migration of bisphenol A was determined by placing a polycarbonate bottle filled with water in a microwave oven and heating to 100°C; the level of bisphenol A in the water was analysed by GC-MS. The procedure of microwave heating and analysis was repeated twice for the same bottle and, thus, three migration extracts were prepared for each test specimen. Migration of bisphenol A into water ranged from <0.1 to 0.7 µg l-1. There was no correlation between the amount of residual content of bisphenol A in the bottles and the migration of bisphenol A into water. Furthermore, there was no correlation between the amounts of bisphenol A in consecutive migration extracts. Data show that during three microwave-heating cycles of a baby bottle made from polycarbonate, microwave radiation had no effect on the migration of bisphenol A into water from polycarbonate. All levels found were well below the specific migration limit of 0.6 mg kg-1 specified for bisphenol A in Commission Directive 2004/19/EC. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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| Abstract: | A comprehensive migration database was established for bisphenol A from polycarbonate baby bottles into water during exposure to microwave heating. Eighteen different brands of polycarbonate baby bottles sold in Europe were collected. Initial residual content of bisphenol A and migration after microwave heating were determined. Residual content of bisphenol A in the polycarbonate baby bottles ranged from 1.4 to 35.3 mg kg-1. Migration of bisphenol A was determined by placing a polycarbonate bottle filled with water in a microwave oven and heating to 100°C; the level of bisphenol A in the water was analysed by GC-MS. The procedure of microwave heating and analysis was repeated twice for the same bottle and, thus, three migration extracts were prepared for each test specimen. Migration of bisphenol A into water ranged from <0.1 to 0.7 µg l-1. There was no correlation between the amount of residual content of bisphenol A in the bottles and the migration of bisphenol A into water. Furthermore, there was no correlation between the amounts of bisphenol A in consecutive migration extracts. Data show that during three microwave-heating cycles of a baby bottle made from polycarbonate, microwave radiation had no effect on the migration of bisphenol A into water from polycarbonate. All levels found were well below the specific migration limit of 0.6 mg kg-1 specified for bisphenol A in Commission Directive 2004/19/EC. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 19440049 |
| DOI: | 10.1080/02652030701867867 |
