Gas Chromatograph Based on Packed μGC-Columns and μ-Preconcentrator Devices for Ethylene Detection in Fruit Logistic Applications

摘要

A miniaturised preconcentrator device (μPCD) filled with Carbosieve S-II was coupled with a miniaturised gas chromatograph (μGC) and was tested with focus on ethylene gas measurement. The application of the μPCD results in an increase of the system sensitivity by a factor of 23 from 140 ppmv to 6 ppmv using an ethylene detector based on a metal oxide sensor.