Automated SPE of PAH compounds using the Horizon 5000

The Horizon 5000 (previously known as SPE-DEX 5000) automated extraction system is a programmable, multipurpose SPE system, capable of processing aqueous samples directly from their original containers. Once the process is initiated, each Horizon 5000 module delivers all the necessary solvents to precondition the sorbent material within the SPE disk, passes the water sample through the disk and, after a preset air-dry time, extracts the sorbed analytes from the disk into a collection vessel using the required amounts of solvents.

This work describes the evaluation of three different disk media type to better understand the performance of each for a wide range of PAH compounds. The media evaluated includes C18 high-capacity, DVB and HLB-M.