ASSESSMENT OF A CHROMOGENIC CALIX[4]ARENE FOR THE RAPID COLORIMETRIC DETECTION OF TRIMETHYLAMINE

Authors
MCCARRICK M HARRIS SJ DIAMOND D
Citation
M. Mccarrick et al., ASSESSMENT OF A CHROMOGENIC CALIX[4]ARENE FOR THE RAPID COLORIMETRIC DETECTION OF TRIMETHYLAMINE, Journal of materials chemistry, 4(2), 1994, pp. 217-221
Citations number
21
Categorie Soggetti
Chemistry Physical","Material Science
Journal title
Journal of materials chemistry → ACNP
ISSN journal
09599428
Volume
4
Issue
2
Year of publication
1994
Pages
217 - 221
Database
ISI
SICI code
0959-9428(1994)4:2<217:AOACCF>2.0.ZU;2-0
Abstract
A calix[4]arene bearing nitrophenylazophenol chromogenic moieties when complexed with lithium has been synthesized and examined as a visual indicator for the presence of gaseous amines such as trimethylamine (T MA). The complexed calixarene has been immobilised onto filter paper a nd found to undergo a dramatic colour change from yellow to red in the presence of gaseous TMA at concentrations above 20 ppb in under 2 min . The intensity of the colour produced is TMA-concentration dependent.