Calixarene-coated piezoelectric quartz crystal sensor for the detection of organic amine in liquids

Autor:	Xu-bo Hu, Xi-Wen He, Hua Xu, Lang-xing Chen
Rok vydání:	1999
Předmět:	Analyte Aqueous solution Chemistry Inorganic chemistry Analytical chemistry Cat's-whisker detector engineering.material Biochemistry Analytical Chemistry Crystal Coating Calixarene Electrochemistry engineering Environmental Chemistry Amine gas treating Selectivity Spectroscopy
Zdroj:	The Analyst. 124:1787-1790
ISSN:	1364-5528 0003-2654
Popis:	Five calixarene compounds were applied as piezoelectric quartz crystal (PQC) sensory coatings for the selective detection of organic amines in liquids. The complexation based on the host–guest interaction between the calixarene coating and the analyte makes the coated PQC sensors sensitive to organic amines and results in quasi-irreversible frequency changes. The relative selectivity of the analytes is explained by the cavity inclusion of analyte molecule, complete or partial, or by steric hindrance interaction. A PQC sensor coated with a calixarene with an acetate ester group exhibits a nearly linear response for analytes in the concentration range 0–200 ppm.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::bfb4af49906913a742442bdcba360c46 https://doi.org/10.1039/a906300e Zobrazit plný text záznamu