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首页> 外文期刊>Journal of Applied Polymer Science >Separation of endocrine disruptors from aqueous solutions by pervaporation: Dioctylphthalate and butylated hydroxytoluene in mineral water
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Separation of endocrine disruptors from aqueous solutions by pervaporation: Dioctylphthalate and butylated hydroxytoluene in mineral water

机译：通过全蒸发从水溶液中分离内分泌干扰物：矿泉水中的邻苯二甲酸二辛酯和丁基化羟基甲苯

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We examined the existence of endocrine disruptors in mineral water, ultrapure water, and tap water. GC/MS analysis revealed that di-n-octylphthalate (di-n-octylphthalate and di(2-ethylhexyl)phthalate) in the water was found to be on the order of parts per billion. The dioctylphthalate concentration remained consistent for mineral water of the same brand, regardless of whether it was bottled in a PET bottle or a glass bottle. Therefore, the dioctylphthalate contamination in mineral water originated from the manufacturing line of the mineral water and not as a result of leaching from PET bottles. Butylated hydroxytoluene (BHT), an oxidization prevention agent in plastics, was detected at 2.05 +/- 0.1 ppb in the mineral water bottled in glass bottles, but was not detected in the mineral water bottled in PET bottles. BHT contamination in the mineral water in the glass bottles is likely to have originated from the cap of the glass bottles, as the caps were sealed with polyethylene. We further investigated the feasibility of separating dioctylphthalate and BHT from the mineral water by pervaporation using hydrophobic polydimethylsiloxane membranes. We found that trace amounts (on the order of parts per billion) of organic chemicals such as dioctylphthalate and BHT in aqueous solutions can be removed and concentrated by the pervaporation using polydimethylsiloxane membranes. (C) 2004 Wiley Periodicals, Inc.
机译：我们检查了矿泉水，超纯水和自来水中内分泌干扰物的存在。 GC / MS分析表明，水中的邻苯二甲酸二正辛酯（邻苯二甲酸二正辛酯和邻苯二甲酸二（2-乙基己基）酯）约为十亿分之几。相同品牌的矿泉水中的邻苯二甲酸二辛酯浓度保持一致，无论是装在PET瓶中还是玻璃瓶中。因此，矿泉水中的邻苯二甲酸二辛酯污染源于矿泉水的生产线，而不是从PET瓶中浸出的结果。在玻璃瓶装的矿泉水中检测到丁基化羟基甲苯（BHT），一种塑料中的氧化防止剂，其含量为2.05 +/- 0.1 ppb，但在PET瓶装的矿泉水中未检测到。玻璃瓶盖中的矿泉水中的BHT污染很可能来自玻璃瓶盖，因为瓶盖是用聚乙烯密封的。我们进一步研究了使用疏水性聚二甲基硅氧烷膜通过全蒸发从矿泉水中分离邻苯二甲酸二辛酯和BHT的可行性。我们发现，水溶液中的痕量（约十亿分之几）有机化学物质，例如邻苯二甲酸二辛酯和BHT可以通过使用聚二甲基硅氧烷膜的渗透蒸发来去除和浓缩。 （C）2004年Wiley Periodicals，Inc.

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