Teoret. i eksperim. khimiya. 2006. Vol.42 No. 6. p. 371-376
Sensitivity of Coatings of the Piezoquartz Sensors Based
on Metal Thiolates to Hydrocarbons, Methanol and Water
А. P. Filippov, P. Е. Strizhak, D. I. Denisyuk, Т. G. Serebry
L. V. Pisarzhevskii Institute of Physical Chemistry, National Academy of Sciences of Ukraine
Prosp. Nauky, 31, Кyiv 03028, Ukraine. Е-mail: email@example.com
Octadecylthiolates of Mn(II), Fe(II), Co(II), Ni(II), Cu(II), Zn(II), Ag(I) and Pb(II) were used as chemical
coatings for piezoquartz resonator (PQR) sensors, sensitive to hydrocarbons, alcohols and water vapors.
The sensitivity of the PQR sensors in stationary flow regime at 25 °С was altered from 0.5 to 5 Hz/(mg/L)
depending on the coatings composition and the analyte nature. The array of 8 PQR sensors with these
coatings gave the sensor image of the corresponding analyte, which was weakly dependent on the analyte
concentration. The sensitivity of the PQR sensors with the studied coatings decreased in no more than
10-15% after several months of storage.
metal thiolates, sensors, ELECTRONIC NOSE, hydrocarbons, alcohols.