Examination of dodecylpyridinium chloride as a potentially selective fluorescence quenching agent for discriminating between alternant versus nonalternant polycyclic aromatic hydrocarbons

被引：13

作者：

Pandey, S

Roy, LE

Acree, WE ^{[1
]}

Fetzer, JC

机构：

[1] Univ N Texas, Dept Chem, Denton, TX 76203 USA

[2] Chevron Res & Technol Co, Richmond, CA 94802 USA

来源：

TALANTA | 1999年 / 48卷 / 05期

关键词：

fluorescence quenching; selective quenching agents; surfactants; mixed micelles; polycyclic aromatic hydrocarbons;

D O I：

10.1016/S0039-9140(98)00332-4

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Fluorescence behavior is reported for 13 alternant and 12 nonalternant polycyclic aromatic hydrocarbons (PAHs) dissolved in aqueous micellar cetyltrimethylammonium chloride (CTAC) + dodecylpyridinium chloride (DDPC) and sodium dodecylsulfate (SDS) + DDPC mixed surfactant solvent media. Experimental measurements indicate that the dodecylpyridinium cation selectively quenches fluorescence emission of alternant PAHs. Emission intensities of nonalternant PAHs, with a few noted exceptions, essentially remain constant, irrespective of both DDPC concentration and cosurfactant headgroup charge. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：1103 / 1110

页数：8

共 25 条

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