Chemical images by porphyrin arrays of sensors

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• 作者：Roberto Paolesse ; Larisa Lvova ; Sara Nardis ; Corrado Di Natale ; Arnaldo D’Amico and Fabio Lo Castro
• 关键词：Keywords ; Sensors ; porphyrins ; ion selective electrodes ; electronic tongue
• 刊名：Microchimica Acta
• 出版年：2008
• 出版时间：September, 2008
• 年：2008
• 卷：163
• 期：1-2
• 页码：103-112
• 全文大小：388.7 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Analytical Chemistry
  Inorganic Chemistry
  Physical Chemistry
  Characterization and Evaluation Materials
  Monitoring, Environmental Analysis and Environmental Ecotoxicology
  
• 出版者：Springer Wien
• ISSN：1436-5073

文摘

Metalloporphyrins offer almost unique opportunities to design artificial receptors for chemical sensors. These molecules can be tailored, at the synthetic level, changing in a rational way the sensor selectivity that can be oriented toward desired analyte families. Since porphyrins showed interesting properties as ionophors in liquid phase, they have been widely used to develop ion selective electrodes. These electrochemical sensors grouped in a matrix and supported by a suitable pattern recognition analysis constituted a system called electronic tongue. The present work describes in some detail the operating principle of a electronic tongue multisensor system, and a number of chemical images, coming from biological, environmental or food samples, obtained as a result of the exploitation of the device.