title: Ultra-sensitive ethylene post-harvest monitor based on cavity ring-down spectroscopy.
abstract: We describe the application of cavity ring-down spectroscopy (CRDS) to the detection of trace levels of ethylene in ambient air in a cold storage room of a fruit packing facility over a several month period. We compare these results with those obtained using gas chromatography (GC), the current gold standard for trace ethylene measurements in post-harvest applications. The CRDS instrument provided real-time feedback to the facility, to optimize the types of fruit stored together, and the amount of room ventilation needed to maintain sub-10 ppb ethylene levels for kiwi fruit storage. Our CRDS instrument achieved a detection limit of two parts-per-billion volume (ppbv) in 4.4 minutes of measurement time.
authors.forename: Edward
authors.initials: E
authors.lastname: Wahl
authors.forename: Sze
authors.initials: S
authors.lastname: Tan
authors.forename: Sergei
authors.initials: S
authors.lastname: Koulikov
authors.forename: Boris
authors.initials: B
authors.lastname: Kharlamov
authors.forename: Christopher
authors.initials: C
authors.lastname: Rella
authors.forename: Eric
authors.initials: E
authors.lastname: Crosson
authors.forename: Dave
authors.initials: D
authors.lastname: Biswell
authors.forename: Barbara
authors.initials: B
authors.lastname: Paldus