Laboratory characterization of metal-oxide sensors intended for in situ analyses of pheromones – SOMMSA approach



We present pheromone measurements of metal-oxide gas sensors in a laboratory setup using a ‘selective odorant measurement of a multi-sensor array’. The array was equipped with commercial gas sensors and measured with constant temperatures and a temperature cycle to increase the sensitivity. To compare and to calibrate the measurement of insect pheromones, we used a portable GC-MS with an electro-antennographic detection system for insect antennae. In order to reach a proof of principles for the intended use of the system for in situ analyses in viticulture and the development of a portable biosensor, we tested the sensors with the main component E7,Z9-Dodecadien-1-yl acetate of the pheromone of the grapevine moth (Lobesia botrana).