Optimization and validation of a method based on QuEChERS extraction and liquid chromatographic–tandem mass spectrometric analysis for the determination of perfluoroalkyl acids in strawberry and olive fruits, as model crops with different matrix characteristics

Amino groups modified SBA-15 for dispersive-solid phase extraction in the analysis of micropollutants by QuEchERS approach

“…Instead, an apparent correlation of ER% with log P for both PAHs and PCBs classes is observed only for PSA (ER% = 10.36 logP + 0.49, r 2 = 0.653), highlighting possible limitations in its use of this d-SPE sorbent for more polar analytes. This observation agrees with what found by Scordo et al [1] in the extraction of perfluoroalkyl acids from strawberry.…”

Method Development and Validation of Per- and Polyfluoroalkyl Substances in Foods from FDA’s Total Diet Study Program

“…A recent study determined that PSA was not suitable for use in QuEChERS extraction of PFAS in strawberries and olives; however, during their testing, 300 mg of PSA was used per mL of the extraction solvent. 27 Previous studies have used PSA in QuEChERS extractions of PFAS from milk (15 mg/mL extract), 33 milk, eggs, butter, cheese, and fish (50 mg/mL extract), 26 bovine liver (25 mg/mL extract), and in this study (30 mg/mL extract). In order to test the effect of the dSPE sorbent with and without PSA, bulk sorbents were purchased, and dSPE tubes were prepared with (1) 900 mg of MgSO 4 , 150 mg of GCB, and 300 mg of PSA and (2) 900 mg of MgSO 4 and 150 mg of GCB.…”

“…In a paired two-sided t-test, there were no significant differences between the recoveries of the extract with and without PSA. Although large amounts of PSA (3000 mg) have shown significant decreases in the recoveries of PFAS, 27 when small amounts of PSA are added, this is not a concern especially when combined with 150 mg of GCB, which has been shown to reduce the ability of PSA to bind carboxylic acids. 41 With the reduced PSA capacity due to the use of GCB and an acidic extraction solvent and the abundance of other acids in the food matrix competing for binding sites, significant losses of PFAS analytes are not observed in this method.…”

“…The analysis of PFAS in foods using QuEChERS extraction has been previously reported in milk, eggs, butter, cheese, fish, honey, cranberries, strawberries, olives, and garden produce. − Due to its ease of use and ability to work with a wide variety of matrices, − a QuEChERS extraction method was chosen for analyzing TDS samples. The main objective of this research was to develop and validate a method that could be used for monitoring PFAS in TDS samples on a routine basis.…”

Productivity and nutritional and nutraceutical value of strawberry fruits (Fragaria x ananassa Duch.) cultivated under irrigation with treated wastewaters

“…Sugars and phenolic compounds were extracted by the same procedure, 23 using raffinose, myricetin and petunidin‐3‐ O ‐arabinoside for the evaluation of the apparent recovery 24 . Full details of the extraction procedure are provided in the Supporting information (Section S4).…”