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

• Amino modified SBA-15 behave as high capacity anion-exchangers Modified adsorbents are good candidates d-SPE sorbents in QuEChERS protocol Signal-to noise ratio of target pollutants is affected by the type sorbent Interactions between sugars and amino materials pH dependent Charge density distribution explains loss recoveries In analysis contaminants food products, sample preparation performed proper adsorbents, whose choice crucial to eliminate matrix interference. this work we functionalization with (3-aminopropyl)-triethoxysilane (SBA-15-APTES) N-[3-(trimethoxysilyl)propyl]aniline (SBA-15-AN) aiming use them for first time clean-up step a (quick, easy, cheap, effective, rugged safe) extraction micropollutants from strawberry, sugar rich fruit. After physico-chemical characterization nitrogen adsorption, infrared spectroscopy thermogravimetric analysis, adsorption capabilities possible interaction mechanisms were studied at different (2.1-8.5) glucose, sucrose fructose concentrations characteristic those found strawberries. The performance two was compared that commercial PSA (primary secondary amine), usually proposed protocols. Both exhibit up 30% higher than PSA, suggesting their application. Synthesized hence used innovative dispersive extractions 13 PAHs 14 PCBs strawberry. For PCBs, SBA-15-AN provides better removal comparable around 90%. PAHs, has advantage lower relative standard deviation (7%) (19%).