Selective Detection of Aromatic Compounds with a Re-Designed Surface Acoustic Wave Sensor System Using a Short Packed Column

A self-developed and newly re-designed chemical SAW sensor system composed of four polymer-coated and four differently modified nano-diamond-coated SAW sensors was applied to measure aromatic compounds in gasoline in a low-cost, fast, and easy way. An additional short packed column at the system inl...

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Bibliographic Details
Published in:Coatings (Basel) 2022-11, Vol.12 (11), p.1666
Main Authors: Carriel Schmitt, Caroline, Rapp, Michael, Voigt, Achim, De Carvalho, Mauro dos Santos
Format: Article
Language:English
Subjects:
Aliphatic compounds
Aromatic compounds
Chromatography
Design
Diamond films
Gases
Gasoline
Liquid fuels
Metal oxides
Nanoparticles
Nanostructure
Packed columns
Pattern recognition
Polymer coatings
Polymers
Selectivity
Sensors
Surface acoustic wave devices
Surface acoustic waves
Technology application
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Summary:A self-developed and newly re-designed chemical SAW sensor system composed of four polymer-coated and four differently modified nano-diamond-coated SAW sensors was applied to measure aromatic compounds in gasoline in a low-cost, fast, and easy way. An additional short packed column at the system inlet improve the selectivity for various possible fuel applications. The column allows the direct sampling of liquid fuels and pre-separates the different components in groups (aromatic and aliphatic compounds) from a fuel sample. Since the sensors employed show linearity towards concentration, an easy quantification of single fuel components was possible even within the group of aromatic compounds.
ISSN:2079-6412
2079-6412
DOI:10.3390/coatings12111666