PT Journal
AU Dickert, FL
   Haunschild, A
   Kuschow, V
   Reif, M
   Stathopulos, H
TI Mass-sensitive detection of solvent vapors. Mechanistic studies on host-guest sensor principles by FT-IR spectroscopy and BET adsorption analysis
SO Analytical Chemistry
JI Anal. Chem.
PY 1996
BP 1058
EP 1061
VL 68
IS 6
DI 10.1021/ac950639z
DE supramolecular recognition; quartz crystal microbalance; QCM; surface acoustic wave; SAW; mass-sensitive sensor; detector; calixarenes; MM3 force field; Brunauer; Emmett and Teller theory; BET
AB Chemical sensors, based on highly mass sensitive QMB or SAW devices, coated with thin layers of calixarenes, enable the detection of organic solvent vapours, especially halogenated or aromatic hydrocarbons, down to a few ppm. Force field calculations allow the tailoring of these sensor materials seeing that the predicted interaction energies between the host molecules and a large variety of analytes are linearly correlated to the measured sensor effects. These correlations and also BET adsorption analysis prove the analyte recognition properties of these calixarene coatings to be mainly based on host/guest inclusion principles.
ER