Piet van Zoonen

TL;DR: The role of gas chromatography as an analytical tool in combination with currently used or recently developed sample preparation techniques is described.

TL;DR: Until recently, the application of liquid chromatography in pesticide analysis was usually focused on groups of compounds or single compounds for which no suitable conditions were available for analysis with gas chromatography (GC), but recent developments in both detection and column material technology show that LC significantly enlarged its scope in this field of analysis.

TL;DR: The adopted LC/LC-TSP/MS/ MS analyzer appeared to be very robust under the selected conditions, and, after the period of analysis involving the processing of more than 100 mL of serum, neither loss of chromatographic performance nor pressure increase of columns or of the interface was observed.

TL;DR: In this article, the ASPEC system was coupled with capillary GC-ECD by means of a loop-type interface equipped with a solvent vapour exit, leading to an effective clean-up of the extracts analyzed.

TL;DR: In this article, micro liquid-liquid extraction with methyl tert-butyl ether was combined with GC-FPD in a fully automated set-up, using GC sample introduction volumes of 500 μl, which were transferred via an oncolumn interface equipped with an early vapour exit.