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Potential of solid phase microextraction and gas chromatography for quarantine-required detection of wood packaging in shipping containers

✍ Scribed by Nicole A. More; Terry J. Braggins; Stephen L. Goldson

Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
571 KB
Volume
30
Category
Article
ISSN
1615-9306

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✦ Synopsis

Abstract

Solid phase microextraction (SPME) coupled with gas chromatography (GC) was used to detect terpene hydrocarbons inside shipping containers entering New Zealand. The utility of this system for the rapid detection of undeclared wood packaging for quarantine purposes was demonstrated. A portable dynamic air‐sampling device was built to house a SPME fibre and allow the air from shipping containers to be sampled. The effects of sample flow rate and sampling time were investigated and sampling conditions of 100 mL/min for 30 s were chosen to keep sampling within the linear range. A CV of less than 15% (n = 12) was obtained for all the compounds analysed under these conditions. To obtain an estimate for the limit of detection (LOD) for the terpene hydrocarbons of interest, small quantities of lime oil were placed in an empty shipping container and the air inside was analysed. LOD (S/N = 3) was estimated to be in the order of 50–100 ng/L of air using GC with flame ionisation detection (GC‐FID). Finally, the device was tested in fully laden containers and was shown to be effective for trapping terpene hydrocarbons indicative of wood packaging.

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