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7 results for “Magnetic Solid Phase Extraction”
Fig. 5 in Magnetic Ti C MXene functionalized with β-cyclodextrin as magnetic solid-phase extraction and in situ derivatization for determining 12 phytohormones in oilseeds by ultra-performance liquid chromatography-tandem mass spectrometry
Fig. 5. Spatio-temporal distribution of target phytohormones in different tissue of rapeseed germination.
Fig. 2 in Magnetic Ti C MXene functionalized with β-cyclodextrin as magnetic solid-phase extraction and in situ derivatization for determining 12 phytohormones in oilseeds by ultra-performance liquid chromatography-tandem mass spectrometry
Fig. 2. XRD spectrum (a), FI-TR pattern (b), Raman spectrum (c) of the composite material, and magnetization hysteresis loop of Fe3O4@Ti3C2@β-CD (d).
Fig. 1 in Magnetic Ti C MXene functionalized with β-cyclodextrin as magnetic solid-phase extraction and in situ derivatization for determining 12 phytohormones in oilseeds by ultra-performance liquid chromatography-tandem mass spectrometry
Fig. 1. Schematic of the synthetic route for Fe3O4@Ti3C2@β-CD and the sample pre-treatment procedure.
Fig. 4 in Magnetic Ti C MXene functionalized with β-cyclodextrin as magnetic solid-phase extraction and in situ derivatization for determining 12 phytohormones in oilseeds by ultra-performance liquid chromatography-tandem mass spectrometry
Fig. 4. Effects of different cleanup sorbents (a), effects of the amount of magnetic solid-phase extraction sorbents (b), effects of the simultaneous derivatization and magnetic solid phase extraction time (c), effects of the desorption time (d). 5 mg rapeseed spiked with 10 ng/g of each analyte.
Fig. 3 in Magnetic Ti C MXene functionalized with β-cyclodextrin as magnetic solid-phase extraction and in situ derivatization for determining 12 phytohormones in oilseeds by ultra-performance liquid chromatography-tandem mass spectrometry
Fig. 3. SEM image of Ti3C2 (a) and Fe3O4@Ti3C2@β-CD (b), TEM image of Ti3C2(c) and Fe3O4@Ti3C2@β-CD (d), elemental mapping and chemical composition of Fe3O4@Ti3C2@β-CD (e).
Data from: New sporopollenin-based β-cyclodextrin functionalized magnetic hybrid adsorbent for magnetic solid-phase extraction of nonsteroidal anti-inflammatory drugs from water samples.
A magnetic solid-phase extraction (MSPE) procedure on the newly synthesized magnetic β-cyclodextrin functionalized with toluene diisocyanate (TDI) as a linker and was further modified with bio-polymeric spores of sporopollenin (MSp-TDI-βCD) was developed for the extraction of nonsteroidal anti-inflammatory drugs (NSAIDs) namely indoprofen (INP), ketoprofen (KTP), ibuprofen (IBP) and fenoprofen (FNP) from water samples prior to their HPLC-DAD determination. The newly synthesised MSp-TDI-βCD was comprehensibly characterized using FT-IR, XRD, SEM-EDX, BET and VSM analyses. The separation of selected NSAIDs on MSp-TDI-βCD from aqueous solution was simply achieved by applying an external magnetic field via a permanent magnet. The MSPE parameters affecting extraction performance i.e., sorbent dosage, sample volume, extraction and desorption time, type of organic eluent and volume and solution pH were investigated and optimized. The proposed method showed linear range between 0.5 - 500 ng/mL, low limit of detection at S/N = 3 (0.16 - 0.37 ng/mL) and limit of quantification at S/N = 10 (0.53 - 1.22 ng/mL). The interday (n = 15) and intraday (n = 5) precision for the proposed methods given by relative standard deviation (RSD%) in the range of 2.5 - 4.0 and 2.1 - 5.5 respectively. The extraction recoveries of NSAIDs from environmental samples (tap, drinking and river water) ranged from 92.5 - 123.6%, with satisfactory precision (RSD% less than 12.4%).
Data from: New sporopollenin-based β-cyclodextrin functionalized magnetic hybrid adsorbent for magnetic solid-phase extraction of nonsteroidal anti-inflammatory drugs from water samples.
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