Photochemical conversion of triclosan to 2,8-dichlorodibenzo-p-dioxin in aqueous solution

被引：220
作者：
Latch, DE
Packer, JL
Arnold, WA
McNeill, K
机构：
[1] Univ Minnesota, Dept Chem, Minneapolis, MN 55455 USA
[2] Univ Minnesota, Dept Civil Engn, Minneapolis, MN 55455 USA
来源：
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2003年 / 158卷 / 01期
关键词：
triclosan; 2,8-dichlorodibenzo-p-dioxin; direct photolysis; photochemical cyclization; natural water;
D O I：
10.1016/S1010-6030(03)00103-5
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The direct photolysis of triclosan (5-chloro-2-(2,4-dichlorophenoxy)phenol), an antimicrobial additive commonly detected in surface waters, is studied. It is found that 2,8-dichlorodibenzo-p-dioxin (2,8-DCDD) is produced in both buffered and natural (Mississippi River) water with yields ranging from 1 to 12% under a variety of conditions. This result indicates that triclosan is likely converted to 2,8-DCDD in sunlight-irradiated surface waters. (C) 2003 Elsevier Science B.V. All rights reserved.
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页码：63 / 66
页数：4
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