Abstract

X-ray photoelectron spectroscopy (XPS) is a really specific and sensitive method for surface analysis. The monitoring of antimony concentrations in polyethylene terephthalate (PET) bottles by XPS analysis is a new method for the characterization of bottled water contamination by antimony which frequently comes into contact with food and drink. The elevation of Sb concentrations in bottled waters is mainly due to Sb₂O₃ being used as a catalyst in the manufacture of PET. In this study, using a sensitive XPS determination of Sb in PET bottle materials, we observed that the water became contaminated with Sb during storage. Because the color of PET material may have an impact on the leaching of antimony, clear and blue PET bottle materials were analyzed separately and the results were compared directly. The main difference between the previous analyses and this study is that we analyzed only bottle plastic material rather than the water itself.

中文翻译：

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X射线光电子能谱表征聚对苯二甲酸乙二酯瓶中的锑浸出

摘要

X射线光电子能谱（XPS）是一种非常特殊且灵敏的表面分析方法。通过XPS分析监测聚对苯二甲酸乙二醇酯（PET）瓶中锑的浓度是表征瓶装水经常被食品和饮料接触的锑污染的一种新方法。瓶装水中Sb浓度的升高主要归因于Sb ₂ O ₃在PET生产中用作催化剂。在这项研究中，使用灵敏的XPS测定PET瓶材料中的Sb，我们观察到在存储过程中水被Sb污染了。由于PET材料的颜色可能会影响锑的浸出，因此分别对透明和蓝色PET瓶材料进行了分析，并直接比较了结果。先前的分析与本研究之间的主要区别在于，我们仅分析了瓶装塑料材料，而不分析了水本身。