CYCLODEXTRIN-MODIFIED SOLVENT-EXTRACTION FOR POLYNUCLEAR AROMATIC-HYDROCARBONS

被引：35

作者：

BLYSHAK, LA ^{[1
]}

ROSSI, TM ^{[1
]}

PATONAY, G ^{[1
]}

WARNER, IM ^{[1
]}

机构：

[1] EMORY UNIV,DEPT CHEM,ATLANTA,GA 30322

来源：

ANALYTICAL CHEMISTRY | 1988年 / 60卷 / 19期

关键词：

Ethers; -; Water;

D O I：

10.1021/ac00170a028

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The extraction efficiencies of several polynuclear aromatic hydrocarbons (PAHs) between isopropyl ether/water and between isopropyl ether:1-butanol (1:4)/water are measured in the presence of an aqueous γ-cyclodextrin (CDx) modifier at room temperature. The distribution of certain PAHs into the aqueous phase is increased by the presence of 10-2 M γ-CDx. For compounds such as perylene and coronene, which show the most marked effects, the extraction efficiencies into the aqueous phase from pure isopropyl ether are 95.1% and 93.7%, respectively, when the CDx modifier is used. In the mixed solvent system with 1-butanol, these values are 63.4% and 98.1%, respectively. In both systems, the increased distribution into water is based in part on the size relationship between the PAH and the CDx cavity.

引用

页码：2127 / 2131

页数：5

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