Removal of bisphenol a in soil by cyclodextrin derivatives |
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| Authors: | Mamiko Araki Naohito Kawasaki Takeo Nakamura Seiki Tanada |
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| Institution: | 1. Faculty of Pharmaceutical Sciences , Kinki University , Kowakae, Higashi‐Osaka, Osaka, 577–8502, Japan;2. Faculty of Pharmaceutical Sciences , Kinki University , Kowakae, Higashi‐Osaka, Osaka, 577–8502, Japan;3. Phone: +81–6–6721–2332;4. Fax: +81–6–6721–2332;5. E-mail: tanada@phar.kindai.ac.jp. |
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| Abstract: | The apparent aqueous solubility of the endocrine disruptor in hydroxypropyl‐cyclodextrin (HP‐CD) solutions was investigated for evaluating the remediation of soil contamination and ground water pollution. The apparent solubility of bisphenol A (BPA) in water was significantly increased in HP‐CD solutions. The solubilization effect of HP‐CD's is caused by the formation of inclusion complexes of BPA and cyclodextrin. The relative aqueous‐phase concentration of BPA linearly increased with increasing HP‐CD concentration. The solubility of BPA increased in the order of the addition of HP‐a‐CD, HP‐7‐CD, and HP‐ß‐CD. However, it did not depend upon the degree of hydroxypropylation substitution. It is concluded that HP‐CD may be utilized for the remediation of soil contamination. |
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| Keywords: | Hydroxypropyl‐cyclodextrin bisphenol A endocrine disruptors |
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