双酚A在严苛条件下从聚碳酸酯婴儿奶瓶和水瓶迁移至水中的情况。
Migration of bisphenol A from polycarbonate baby and water bottles into water under severe conditions.
作者信息
Cao Xu-Liang, Corriveau Jeannette
机构信息
Food Research Division, Bureau of Chemical Safety, Food Directorate, Health Canada, 251 Frederick Banting Driveway, AL: 2203D, Ottawa, Ontario K1A 0K9, Canada.
出版信息
J Agric Food Chem. 2008 Aug 13;56(15):6378-81. doi: 10.1021/jf800870b. Epub 2008 Jul 16.
The isotope dilution headspace solid-phase microextraction and gas chromatography-mass spectrometry method for bisphenol A (BPA) developed previously was used successfully in a BPA migration study at 70 degrees C of polycarbonate baby and reusable water bottles recently sold in Canada by using the whole bottles instead of pieces cut from the bottles. Migration of BPA from the PC bottles heated at 70 degrees C was found to increase over the time in the quadratic equations. Migration levels of BPA in water varied from 228 to 521 microg L (-1) or from 0.26 to 0.90 microg cm (-2) after being heated at 70 degrees C for 6 days. The average migration rates of BPA from the PC bottles into water at 70 degrees C ranged from 1.84 to 4.83 ng cm (-2) h (-1).
先前开发的用于双酚A（BPA）的同位素稀释顶空固相微萃取和气相色谱-质谱法，最近在加拿大销售的聚碳酸酯婴儿奶瓶和可重复使用水瓶于70摄氏度下进行的双酚A迁移研究中成功得到应用，该研究使用的是完整的瓶子而非从瓶子上切割下来的碎片。发现在二次方程中，70摄氏度加热的聚碳酸酯奶瓶中双酚A的迁移量随时间增加。70摄氏度加热6天后，水中双酚A的迁移水平在228至521微克/升之间变化，或在0.26至0.90微克/平方厘米之间变化。70摄氏度下双酚A从聚碳酸酯奶瓶向水中的平均迁移速率在1.84至4.83纳克/平方厘米·小时之间。
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