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Applied Water Science


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(β-cyclodextrin-poly (N-isopropylacrylamide) and water bath at 50°C for 25 min., addition of sodium sulfate for polymer condensation purposes, and desorption with 200 μL ethyl acetate by sonication for 15 min. GC-MS 0.021–0.350 μg/L 82.2–105.6% at 5, 100, and 600 μg/L One sample of each water were analyzed and all PAEs were found at levels from 0.14 to 4.97 μg/L Ethyl acetate showed higher extraction efficiency than hexane, acetone and dichloromethane as desorption solvent. [74] BBP, DBEP, DIPP, DNPP, DCHP, DEHP, DNOP, DINP, and DEHA Milli-Q, pond, tap and waste waters (50 mL) dSPE using 120 mg Basolite* F300 MOF and shaking for 5 min, vacuum-dried using a SPE column for 30 min, and elution with 15-mL ACN HPLC-MS 0.022–0.069 μg/L 70–118% at 0.375 and 1.875 μg/L Eight samples were analyzed and residues of DEHP were found at levels from 0.21 ± 0.26 to 4.04 ± 0.23 (_ig/L in all samples ACN showed higher extraction efficiency than dichloromethane, acetone, cyclohexane and MeOH as elution solvent [25] DMP, DEP, DPP, DIBP, DBP, DNPP, DHXP, BBP, DEHP, DHP, DCHP, DPhP and DNOP Drinking water (200 mL) m-dSPE using 20 mg MWCNTs-m-NPs under agitation for 2 min, a magnet was used for decantation, and elution with 1 mL toluene–acetone (1:4, v/v) GC-MS/MS 0.03–0.1 μg/L 86.6-100.2% at 5 μg/L Three samples were analyzed and no residues were detected Toluene showed higher extraction efficiency than acetone, MeOH, hexane and ethyl acetate as elution solvent. To reduce the toxicity of toluene, different proportions toluene-acetone (1:1, 1:4 and 1:9, v/v) were tested and the mix toluene–acetone (1:4, v/v) gave similar results [76] DEP, DPP, DBP, DCP, and DEHP Bottled and river waters (300 mL) m-dSPE using 25 mg G-Fe3O4 under 3 4 agitation for 15 min, a magnet was used for decantation, and elution (in triplicate) with 0.5 mL acetone by vortex for 10 s HPLC-UV 0.03–0.1 μg/L 80.0–106.0% at 0.5 and 5 μg/L One sample of each water were analyzed and residues of DBP and DEHP were found at 0.12 and 0.15 μg/L, respectively, in the river water sample Acetone showed higher extraction efficiency than MeOH and ACN as elution solvent. Coca-Cola and green tea samples were also analyzed [78] DMP, DEP, DAP, DIBP, and BBP River, reservoir and sea waters (300 mL) m-dSPE using 36 mg layered carbon-Fe3O4 under agitation for 10 min, a magnet was used for decantation, and elution (in triplicate) with 0.5 mL acetone by vortex for 10 s HPLC-UV 0.27–0.33 μg/L 88.0–104.7% at 5 and 10 μg/L One sample of each water were analyzed and residues of DAP and DIBP were found at 0.52 and 0.86 μg/L, respectively, in the river water sample Acetone showed higher extraction efficiency than MeOH and ACN as elution solvent [26] DMP, DEP, DIBP, DBP, DMEP, BMPP, DEEP, DNPP, DHXP, BBP, DBEP, DCHP, DEHP, DIPP, DNOP, and DNP Mineral and tap waters (9.8 mL plus 0.2 mL MeOH) m-dSPE using 0.1 mL suspension of MWCNTs-m-NPs in water (40 mg/ml) under vortex for 3 min, a magnet was used for decantation, and elution with 1 mL acetone GC-MS 0.016–0.13 μg/L 79.6–125.6% at 5 μg/L Two mineral and 1 tap water samples were analyzed and contained at least 3 PAEs at levels from 0.36 to 3.3 μg/L Acetone showed higher extraction efficiency than MeOH, ethyl acetate and hexane as elution solvent. Juice and carbonated drinks, and one perfume sample were also analyzed [77] DMP, DEP, DIBP, DBP, DEHP, BBP, and DNOP River and pond waters (10 mL) m-dSPE using 20 mg G-Fe3O4 under vortex for 15 min, a magnet was used for decantation, and elution with 0.4 mL ethyl acetate and 0.5 g anhydrous sodium sulfate by sonication for 15 min GC-MS 0.035–0.19 μg/L 88–110% at 10,000 μg/L One sample of each water were analyzed and residues of all PAEs except DMP were found at levels from 22.2 to 150.8 μg/L Ethyl acetate showed higher extraction efficiency than acetone and chloroform as elution solvent [79] DMP, DEP, DBP, BBP, and DNOP River, tap and mineral waters (20 mL) m-dSPE using 20 mg Fe3O4-ZIF-8 MOF under sonication for 8 min, a magnet was used for decantation, and elution with 1 mL MeOH by sonication for 8 min HPLC-DAD 0.3–0.8 μg/L 85.6–103.6% at 1, 10, and 100 μg/L One sample of each water were analyzed and at least 2 PAEs at levels from 5 to 60 μg/L were detected in the river and tap water samples Methanol showed higher extraction efficiency than ACN, chloroform and tetrahydrofuran as elution solvent [85] DMP, DEP, DIBP, DBP, DEHP, BBP, DNOP, DMEP, DEEP, DNPP, BMPP, DHXP, DBEP, DCHP, DPhP, and DINP Tap and lake waters (20 mL) m-dSPE using 20 mg Fe3O4-polypyrrole under agitation for 40 min, a magnet was used for decantation, and elution with 2 mL ethyl acetate by sonication for 60 min GC-MS 0.018–0.068 μg/L 80.4–108.2% at 5 and 100 μg/L One sample of each water were analyzed and at least 5 PAEs at levels from 0.10 to 6.90 μg/L were detected An orthogonal fraction factorial design was used for optimization purposes. Ethyl acetate showed higher extraction efficiency than acetone and isopropanol as elution solvent [81] DEP, DPP, DBP, DIPP, DNPP, BBP, DCHP, DEHP, DNOP, DINP, DIDP and DEHA Mineral, tap, pond and waste waters (25 mL adjusted at pH 6) m-dSPE using 60 mg Fe3O4-PDA under agitation for 1 min, a magnet was used for decantation, and elution with 6 mL dichloromethane by agitation for 30 s GC-MS/MS 0.009–0.02 μg/L 71–120% at 0.5 and 5 μg/L One sample of each water were analyzed and residues of DEP and DBP were found at levels from 0.36 ± 0.46 to 4.20 ± 0.52 μg/L in the mineral, tap and waste waters Dichloromethane showed higher extraction efficiency than acetone, MeOH and ACN as elution solvent [22] DMP, DEP, BBP, and DBP