|
Semiconductor Physics, Quantum Electronics & Optoelectronics. 2006. V. 9, N 2. P. 087-091.
Discrimination of the saturated vapours of alcohols by the responses
of assembly of piezoquartz sensors covered with metal stearates
and their complexes with octadecylamine
L.V. Pysarzhevsky Institute of Physical Chemistry, NAS of Ukraine
31, prospect Nauky, 03028 Kyiv, Ukraine
E-mail: pstrizhak@hotmail.com
Abstract. The sensitivity of sensor assembly based on piezoquartz resonators (PQR)
with the chemical coatings of the specified type relatively to the saturated vapours of
several lowest alcohols is investigated. As the chemical coatings, some complex
compounds of d-transition metals with stearate anion (St - ) and octadecylamine (ODA) of
the general formula M(ODA) N St 2 were used, where M 2+ are ions of d-transition metals
Cu(II), Co(II), Ni(II), and N was equal 0, 2, 4, and 6. The sensor images for each of all
alcohols investigated by us has the unique character that can be used for discrimination
between individual alcohols by using the set of coatings of PQR sensors applied in this
work.
Keywords: piezoquartz sensor, alcohols, d-transition metal complex.
| ||