Description
Miniaturised and robotic analytical techniques have gained popularity in official laboratories across Europe in recent years, despite being used for over a decade. This study aims to gain more knowledge about the possibilities for transferring the QuEChERS citrate buffer method followed by dispersive PSA clean-up to automatization. Four customised PSA- µSPE cartridges containing different amount of PSA as follow: 1)5 mg PSA and 20 mg MgSO4, 2)10 mg PSA and 20 mg MgSO4, 3)20 mg PSA and 20 mg MgSO4 and the last one 4) 10 mg PSA without MgSO4 , a Zsep- µSPE cartridges 5)20 mg Zsep and 20 mg MgSO4 and the GC- µSPE containing 6) 12 mg PSA, 12 C18, 1 mg GCB and 20 mg MgSO4 were tested. Two cereals commodity, wheat and oat, were spiked at 10 µg kg-1 with a mixture of > 200 compounds. The results obtained from the QuEChERS method followed by d-SPE were compared with those obtained from micro-SPE. Additionally, the study aimed to optimise the amount of extract loaded at the cartridges and the elution speed. The evaluation focused on parameters which gave the best results in the removal of co-extractives while maintaining the recovery of pesticides. The results showed good comparability with d-SPE clean-up and the combination of µ-SPE, robotic autosamplers.| Period | 16 Sept 2024 → 20 Sept 2024 |
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| Event title | European Pesticide Residue Workshop (EPRW) 2024 |
| Event type | Workshop |
| Location | Zürich, SwitzerlandShow on map |
| Degree of Recognition | International |