A fluorescent sensor for Cu2+ at the sub-ppm level

被引：98

作者：

Mitchell, KA

Brown, RG ^{[1
]}

Yuan, DW

Chang, SC

Utecht, RE

Lewis, DE

机构：

[1] Univ Cent Lancashire, Dept Chem, Preston PR1 2HE, Lancs, England

[2] S Dakota State Univ, Dept Chem & Biochem, Brookings, SD 57007 USA

[3] Univ Wisconsin, Dept Chem, Eau Claire, WI 54702 USA

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 1998年 / 115卷 / 02期

关键词：

fluorescent sensor; Cu2+; metal ions;

D O I：

10.1016/S1010-6030(97)00335-3

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：

Two 4-(aminoalkyl)aminonaphthalimide compounds which exhibit fluorescence enhancement and associated spectral changes in the presence of Cu2+, Mn2+ and Ni2+ are reported. The compounds are believed to undergo intramolecular quenching by the distal nitrogen on the 4-substituent. When metal ions are present, this quenching mechanism is partially or wholly removed due to complexation of the metal ions with the 4-substituent. The two compounds are particularly sensitive to Cu2+ such that concentrations in the 0-1 ppm range are sufficient to effect complete restoration of the naphthalimide fluorescence. (C) 1998 Elsevier Science S.A. All rights reserved.

引用

页码：157 / 161

页数：5

共 16 条

[1] THE UV-VISIBLE ABSORPTION AND FLUORESCENCE OF SOME SUBSTITUTED 1,8-NAPHTHALIMIDES AND NAPHTHALIC ANHYDRIDES [J].