Molecules, Journal Year: 2024, Volume and Issue: 29(19), P. 4656 - 4656
Published: Sept. 30, 2024
Dispersive solid-phase extraction (dSPE) is a crucial step for multiresidue analysis used to remove matrix components from extracts. This purification prevents contamination of instrumental equipment and improves method selectivity, sensitivity, reproducibility. Therefore, clean-up recommended, but an over-purified extract can lead analyte loss due adsorption the sorbent. study provides systematic comparison advantages disadvantages well-established dSPE sorbents PSA, GCB, C18 novel chitin, chitosan, multi-walled carbon nanotube (MWCNT), Z-Sep® (zirconium-based sorbent). They were tested regarding their capacity by visual inspection, UV, GC-MS measurements. The recovery rates 98 analytes, including pesticides, active pharmaceutical ingredients, emerging environmental pollutants with broad range physicochemical properties, determined GC-MS/MS. Experiments performed five different matrices, commonly in food (spinach, orange, avocado, salmon, bovine liver). Overall, was best sorbent capacity, reducing greatest extent median 50% UV measurements, while MWCNTs had largest impact on recovery, 14 analytes showing recoveries below 70%. PSA showed performance overall.
Language: Английский