Search

Fabricates a closely packed monolayer of spherical silicon oxide (SiO) and titanium oxide (TiO) particles of submicrometer size on a silicon or glass substrate by employing a Langmuir-Blodgett film of acid. Flexibility of an alkyl chain in the dicarboxylic acid; Two-dimensional packing of the ceramic spheres.

Characteristics were studied on In2O3 treated with 5 mol% MgO responses to 300 ppm trimethylamine (TMA), dimethylamine (DMA), ammonia and other gases evolved from several different fish muscles stored under different conditions. Sensitivities of the In2O3-MgO sensor element were higher in order of TMA, DMA and ammonia over the operating range 330-620°C. Sensor responses were directly pro- portional to concentrations of TMA in fish muscle in the presence of other evolved gases, irrespective of types of fish muscle or storage time. [ABSTRACT FROM AUTHOR]