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Sensitive detection of organic pollutants in water using self-assembled monolayers of p-tert-butylcalix[4]arenetetrathiol on a quartz crystal microbalance

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3 Author(s)
Collins, G.E. ; Div. of Chem., Naval Res. Lab., Washington, DC, USA ; Gibbs, C.G. ; Gutsche, C.D.

This paper discusses a novel approach to chemical sensing of trace organics in aqueous, liquid media utilizing a self-assembled monolayer of p-tert-butylcalix[4]arenetetrathiol (BCAT) on a quartz crystal microbalance (QCM). Replacement of the phenol functionalities of p-tert-butyl-calix[4]arene with thiols enables the self assembly of these basket-shaped, complexing agents onto a mercury-coated QCM. The results demonstrate that the BCAT cage exhibits reversible, shape- or size-selective adsorption of various organic pollutants at the low ppm level in water

Published in:

Solid State Sensors and Actuators, 1997. TRANSDUCERS '97 Chicago., 1997 International Conference on  (Volume:2 )

Date of Conference:

16-19 Jun 1997

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