Molecularly imprinted sensor layers for the detection of polycyclic aromatic hydrocarbons in water

被引：163
作者：
Dickert, FL
Tortschanoff, M
Bulst, WE
Fischerauer, G
机构：
[1] Univ Vienna, Inst Analyt Chem, A-1090 Vienna, Austria
[2] Siemens Corp Res & Dev, D-81739 Munich, Germany
来源：
ANALYTICAL CHEMISTRY | 1999年 / 71卷 / 20期
关键词：
D O I：
10.1021/ac990513s
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Molecularly imprinted polyurethanes are presented as sensitive coatings for the detection of polycyclic aromatic hydrocarbons in water. These sensor layers were combined with fluorescence and mass-sensitive transducers. Imprinting based on van der Waals interactions allows detection of these analytes even without any pronounced functionality. The geometry of the imprint molecule determines the selectivity of the sensor layer. In varying the size of template molecules from anthracene up to 1,12-benzoperylene, selectivity is tuned to a distinct analyte, The enrichment factor of up to approximately 10(7) renders detection down to the ppt range possible with hardly any matrix effect by humic acids.
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收藏
页码：4559 / 4563
页数：5
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