Fluorescence enhancement of aflatoxins using native and substituted cyclodextrins

被引：27

作者：

Dall'asta, C

Ingletto, G

Corradini, R

Galaverna, G

Marchelli, R

机构：

[1] Univ Parma, Dipartimento Chim Organ & Ind, I-43100 Parma, Italy

[2] Univ Parma, Dipartimento Chim Gen & Inorgan, I-43100 Parma, Italy

来源：

JOURNAL OF INCLUSION PHENOMENA AND MACROCYCLIC CHEMISTRY | 2003年 / 45卷 / 3-4期

关键词：

aflatoxin; complexation; cyclodextrin; fluorescence; stability constants;

D O I：

10.1023/A:1024572426577

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Cyclodextrins have been used as fluorescence enhancers in HPLC to improve the detection limits of aflatoxins, cancerogens which can be found in several foodstuffs. In this work, a screening of several cyclodextrins has been performed in order to find the factors affecting the fluorescence enhancement. Evidence for formation of a 1 : 1 AF-CD inclusion complex has been achieved by titration and competitive experiments with adamantanecarboxylic acid and by fluorescence quenching by KI. Stability constants of the AF-CD complexes were evaluated.

引用

页码：257 / 263

页数：7

共 19 条

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