A metal-organic framework of type MIL-101(Cr) for emulsification-assisted micro-solid-phase extraction prior to UHPLC-MS/MS analysis of polar estrogens

Tan, Sze Chieh; Lee, Hian Kee

doi:10.1007/s00604-019-3289-9

Cited by 40 publications

(9 citation statements)

References 35 publications

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“…Low-cost, suitable adsorption capacities for removal dyes and heavy metal ions, regenerating from acid condition, reusability [34] Magnetite nanoparticles Alginate/metal-organic framework Chlorophenoxy acid herbicides high hydrophilicity, large adsorption capacity, enrichment factors range between 27 and 107 [35] Fe 3 O 4 nanoparticles Reduced graphene oxide/polypyrrole nanotube Multi-residue insecticides simultaneous enrichment of different types of insecticides, no matrix effect, high sensitivity, ease of operation [36] Nano γ-Fe 2 O 3 Cationic hydrogel Aromatic pollutants rapid sorption rate (99% dye removal within 5 minutes), 30 cycles, wide pH adsorption range [37] γ-Fe 2 O 3 La 3+ /La(OH) 3 loaded cationic hydrogel Phosphate q max = 90.2±2.9 mg P/g, wide pH adsorption range, easily regenerated, five cycles [38] γ-Fe 2 O 3 Alginate Heat stable salts 3.0 g of composites giving the highest removal of 29.24% in 240 minutes, eight cycles [39] Fe 3 O 4 nanoparticles Gluten/pectin Lake Urmia sediments 62% of the total heavy metal removal rate, 42% of the total organic matter removal rate [40] Iron oxide nanoparticles Alginate Sulfide q max = 136.9 mg g −1 , 98% removal, easily regenerated with calcium chloride solution, five cycles Reprinted with permission. [44] Copyright 2018, Elsevier adsorbents to remove contaminants through electrostatic, ionic exchange or complexation with contaminants such as heavy metal ions.…”

Section: Magnetic Additivementioning

confidence: 99%

Multi‐functional magnetic hydrogel: Design strategies and applications

et al. 2021

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Hydrogel is one of the hottest biomaterials in recent years. Especially, magnetic hydrogels (MHs) prepared by combining unique magnetic nanoparticles (MNPs) with hydrogels have attracted wide attention due to their excellent biocompatibility, mechanical properties, absorbability and rich magnetic properties (magnetocaloric, magnetic resonance imaging and intelligent response, etc.).However, the current literature mainly focuses on the application of MHs, without fully understanding the relationship between the design strategies and applications of each function in MHs. This review highlights six major functional properties of MHs, including mechanical properties, adsorption, magnetocaloric effect, magnetic resonance (MR) imaging, intelligent response and biocompatibility. Principles and design strategies of each performance are thoroughly analyzed. Furthermore, the latest applications of MHs in biomedicine, soft actuators, environmental protection, chemistry and engineering in recent 5 years are introduced from the perspective of each function. In the carefully selected representative cases, the design strategies and application principle of multi-functional MHs are detailed, respectively. The classical fabrication processing of MHs is summarized. At last, we discuss the unmet needs and potential future challenges in MHs development and highlight its emerging strategies.

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Section: Magnetic Additivementioning

confidence: 99%

Multi‐functional magnetic hydrogel: Design strategies and applications

et al. 2021

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“…The developed method showed to have better sensitivity in terms of the linearity and the LODs as compared to 21 , 54 and 22 . However, 22 , 55 reported more better LODs and linearity than the developed method. This was attributed to the fact that they used more advanced analytical instruments such as UHPLC and HPLC MS/MS for their detection.…”

Section: Resultsmentioning

confidence: 76%

From polyethylene waste bottles to UIO-66 (Zr) for preconcentration of steroid hormones from river water

Selahle

Nqombolo

Nomngongo

2023

Sci Rep

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Metal–organic framework (UiO-66 (Zr) was synthesized using polyethylene terephthalate (PET) and used as an adsorbent for extraction and preconcentration of steroid hormones in river water. Polyethylene waste bottles were used as the source of polyethylene terephthalate (PET) ligands. The UIO-66(Zr), which the PET was made from recycled waste plastics, was used for the first time for the extraction and preconcentration of four different types of steroid hormones in river water samples. Various analytical characterization techniques were employed to characterize the synthesized material. The steroid hormones were detected and quantified using high-performance liquid chromatography coupled with diode array detector (HPLC–DAD). The results were further validated using ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS). Experimental variables, such as sample pH, the mass of adsorbent and extraction time, were optimized using Box-Behnken design (BBD). The dispersive solid phase extraction method combined with HPLC–DAD, displayed good linearity (0.004–1000 µg/L) low limits of detections (LODs, 1.1–16 ng/L for ultrapure water and 2.6–5.3 ng/L for river water) and limits of quantification (LOQs, 3.7–5.3 ng/L for ultrapure water and 8.7–11.0 ng/L for river water samples) and acceptable extraction recoveries (86–101%). The intraday (n = 10) and interday (n = 5) precisions expressed in terms of relative standard deviations (%RSD) were all less than 5%. The steroid hormones were detected in most of the river water samples (Vaal River and Rietspruit River). The DSPE/HPLC method offered a promising approach for simultaneous extraction, preconcentration and determination of steroid hormones in water.

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“…MOF-assisted membrane process for removal of radionuclides and other hazardous elements from aqueous solutions The paper presents research on the application of a biosorption-assisted ultrafiltration process using alginic acid and sodium alginate for the removal of selected radionuclides ( 60 Co, 85 Sr and 137 Cs from radioactive liquid waste). Various types of sorbents can be used in the assisted filtration processes.…”

Section: Discussionmentioning

confidence: 99%

Waste PET-MOF-Cleanwater: Waste PET-Derived Metal-Organic Framework (MOFs) as Cost-Effective Adsorbents for Removal of Hazardous Elements from Polluted Water

Jen¹

2022

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In counties like South Africa, firstly, the waste PET stream has posed a serious problem to the environment, and the current recycling of waste PET remains as low as 30%. The waste PET recycling industries such as PETCO & Extrupet (South Africa) are struggling to implement innovative processes to make cooperate more profitable. Secondly, metal-organic frameworks (MOFs) as a new class of porous materials, the MOFs-based water treatment holds the promises to provide cost-effective solutions dealing with the polluted water. However, the high costs of MOFs production have raised a challenge for its effective implementations. Given that, cross-cutting advances in materials and engineering will help to solve those societal challenges. To maintain the world-class research and development associated with human capacity in South Africa, this multidisciplinary and transdisciplinary work has been strengthened along with the basic-applied research continuum under the frame of South Africa (NRF)/Poland (NCBR) Joint Science and Technology Research Collaboration.

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A metal-organic framework of type MIL-101(Cr) for emulsification-assisted micro-solid-phase extraction prior to UHPLC-MS/MS analysis of polar estrogens

Cited by 40 publications

References 35 publications

Multi‐functional magnetic hydrogel: Design strategies and applications

Multi‐functional magnetic hydrogel: Design strategies and applications

From polyethylene waste bottles to UIO-66 (Zr) for preconcentration of steroid hormones from river water

Waste PET-MOF-Cleanwater: Waste PET-Derived Metal-Organic Framework (MOFs) as Cost-Effective Adsorbents for Removal of Hazardous Elements from Polluted Water

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