Abstract
Dispersive solid-phase extraction (DSPE) is considered a beneficial sample preparation in comparison with traditional solid-phase extraction (SPE), mostly due to its simplicity and high recoveries. In a typical procedure, the extract has to be manually aspirated from a vessel containing a centrifuged pellet of sorbent particles. This step can lead to contamination of the chromatographic system and can cause loss of the analyte. In this paper, we propose a new design of a set of simple vessels manufactured by 3D printing that help to overcome the main drawbacks of a conventional DSPE protocol. We show that a complete analytical device can be designed, improved, manufactured, and applied within one laboratory at a low cost. The usefulness of the developed sample preparation device is demonstrated in an example of imipramine and carbamazepine extraction and compared with the performance of the conventional protocol without 3D printed parts.
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