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
收藏
页码：257 / 263
页数：7
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