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  1. Article ; Online: Micro solid phase extraction of lead and cadmium using functionalized nanodiamonds@CuAl

    Soylak, Mustafa / Çoban, Ayşe Nur / Ahmed, Hassan Elzain Hassan

    Food chemistry

    2024  Volume 442, Page(s) 138426

    Abstract: This study focuses on the development and application of a novel nanocomposite (functionalized nanodiamonds@ ... ...

    Abstract This study focuses on the development and application of a novel nanocomposite (functionalized nanodiamonds@CuAl
    MeSH term(s) Cadmium/analysis ; Nanodiamonds ; Lead ; Nanocomposites ; Solid Phase Extraction/methods ; Water ; Spectrophotometry, Atomic/methods ; Metal-Organic Frameworks
    Chemical Substances Cadmium (00BH33GNGH) ; Nanodiamonds ; bis(1,3,5-benzenetricarboxylate)tricopper(II) ; Lead (2P299V784P) ; Water (059QF0KO0R) ; Metal-Organic Frameworks
    Language English
    Publishing date 2024-01-14
    Publishing country England
    Document type Journal Article
    ZDB-ID 243123-3
    ISSN 1873-7072 ; 0308-8146
    ISSN (online) 1873-7072
    ISSN 0308-8146
    DOI 10.1016/j.foodchem.2024.138426
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  2. Article ; Online: Dispersive micro-solid phase extraction (D-μSPE) of nickel on activated nanodiamonds@Bi

    Soylak, Mustafa / Ahmed, Hassan Elzain Hassan / Goktas, Oguzhan

    Food chemistry

    2024  Volume 450, Page(s) 139351

    Abstract: This study presents an original nano-sorbent using activated nanodiamonds@ ... ...

    Abstract This study presents an original nano-sorbent using activated nanodiamonds@Bi
    Language English
    Publishing date 2024-04-15
    Publishing country England
    Document type Journal Article
    ZDB-ID 243123-3
    ISSN 1873-7072 ; 0308-8146
    ISSN (online) 1873-7072
    ISSN 0308-8146
    DOI 10.1016/j.foodchem.2024.139351
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: A magnetic solid phase extraction procedure for Pb(II) at trace levels on magnetic Luffa@TiO

    Ahmed, Hassan Elzain Hassan / Mohammed, Ali Mohammednour Ali / Soylak, Mustafa

    Food chemistry

    2023  Volume 428, Page(s) 136794

    Abstract: A novel magnetic Luffa@ ... ...

    Abstract A novel magnetic Luffa@TiO
    MeSH term(s) Animals ; Cattle ; Luffa ; Lead ; Solid Phase Extraction/methods ; Water ; Adsorption ; Magnetic Phenomena ; Spectrophotometry, Atomic/methods ; Water Pollutants, Chemical/analysis
    Chemical Substances Lead (2P299V784P) ; 1,4-thiomorpholine-3,5-dicarboxylic acid (91828-95-4) ; titanium dioxide (15FIX9V2JP) ; Water (059QF0KO0R) ; Water Pollutants, Chemical
    Language English
    Publishing date 2023-07-04
    Publishing country England
    Document type Journal Article
    ZDB-ID 243123-3
    ISSN 1873-7072 ; 0308-8146
    ISSN (online) 1873-7072
    ISSN 0308-8146
    DOI 10.1016/j.foodchem.2023.136794
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Magnetic solid phase extraction of lead(II) from food and water samples on magnetic MWCNTs/MgAl2O4/TiO2

    Ahmed, Hassan Elzain Hassan / Ozalp, Ozgur / Soylak, Mustafa

    Journal of Food Composition and Analysis. 2023 May, v. 118 p.105163-

    2023  

    Abstract: A magnetic MWCNTs@MgAl₂O₄@TiO₂ novel nanocomposite was synthesized using the sol-gel method. The characterization of synthesized nanocomposite was done using FTIR, XRD, and SEM techniques. The adsorbent was used for dispersive solid-phase extraction of ... ...

    Abstract A magnetic MWCNTs@MgAl₂O₄@TiO₂ novel nanocomposite was synthesized using the sol-gel method. The characterization of synthesized nanocomposite was done using FTIR, XRD, and SEM techniques. The adsorbent was used for dispersive solid-phase extraction of Pb(II). The analytical parameters that affect the extraction recovery of the analyte were optimized, involving the pH, adsorbent amount, sample volume, and interfering ions. The figures of merit such as preconcentration factor (PF), the limit of detection (LOD), the limit of quantification (LOQ), correlation coefficient (R²) and relative standard deviation (RSD) of Pb(II) are 100, 0.42 μg L⁻¹, 1.39 μg L⁻¹, 0.996 % and 4.1 % respectively. TMDA 64.3 fortified lake water and NCS DC 73349 bush, branches and leaves certified reference materials were used to validate the presented procedure. The synthesized adsorbent was used for separation-preconcentration and determination Pb(II) from water and food samples prior to its determination by FAAS.
    Keywords adsorbents ; detection limit ; food composition ; lakes ; lead ; magnetism ; nanocomposites ; pH ; sol-gel processing ; solid phase extraction ; standard deviation ; Magnetic solid phase extraction ; Magnetic MWCNTs@MgAl2O4@TiO2, food samples ; Green chemistry ; FAAS
    Language English
    Dates of publication 2023-05
    Publishing place Elsevier Inc.
    Document type Article ; Online
    ZDB-ID 743572-1
    ISSN 0889-1575 ; 1096-0481
    ISSN 0889-1575 ; 1096-0481
    DOI 10.1016/j.jfca.2023.105163
    Database NAL-Catalogue (AGRICOLA)

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  5. Article ; Online: Magnetic Luffa@metal-organic frameworks (MOF-199) nanocomposite for the solid phase microextraction of some metal ions at trace levels from food and water samples

    Ahmed, Hassan Elzain Hassan / Soylak, Mustafa

    Journal of Food Composition and Analysis. 2023 Aug., v. 121 p.105396-

    2023  

    Abstract: A new adsorbent (magnetic Luffa@MOF-199) was synthesized and used for magnetic solid phase microextraction for separation–preconcentration of Ni(II), Pb(II), Cr(III), and Cd(II) as 2-nitroso-2-naphthol chelates prior to their flame atomic absorption ... ...

    Abstract A new adsorbent (magnetic Luffa@MOF-199) was synthesized and used for magnetic solid phase microextraction for separation–preconcentration of Ni(II), Pb(II), Cr(III), and Cd(II) as 2-nitroso-2-naphthol chelates prior to their flame atomic absorption spectrometer (FAAS) detection. Analytical parameters that affect the quantitative recoveries of analytes such as pH, adsorbent amount, sample and eluent volumes, adsorption and desorption time, and eluent type were optimized. The impact of foreign ions was investigated. The limits of quantification (LOQ) values were 0.35 μg L⁻¹ for Ni(II), 0.38 μg L⁻¹ for Pb(II), 0.55 μg L¹⁻ for Cr(III) and 0.12 μg L⁻¹ for Cd(II). The relative standard deviations (RSD) were in the range of 3.4 – 6.0%. The developed method was validated using certified reference materials (CRMs) (TMDA-64.3 fortified water, GBW07424 (GSS-10) soil and 1573a Tomato Leaves). The method was applied -for determination of Ni(II), Pb(II), Cr(III), and Cd(II) contents of some food, tobacco, and wastewater samples.
    Keywords adsorbents ; adsorption ; atomic absorption spectrometry ; chemical species ; desorption ; food composition ; magnetism ; nanocomposites ; pH ; soil ; solid phase microextraction ; tobacco ; tomatoes ; wastewater ; Preconcentration ; Heavy elements ; Flame atomic absorption spectrometer ; Water and food samples
    Language English
    Dates of publication 2023-08
    Publishing place Elsevier Inc.
    Document type Article ; Online
    ZDB-ID 743572-1
    ISSN 0889-1575 ; 1096-0481
    ISSN 0889-1575 ; 1096-0481
    DOI 10.1016/j.jfca.2023.105396
    Database NAL-Catalogue (AGRICOLA)

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  6. Article ; Online: A magnetic solid phase extraction procedure for Pb(II) at trace levels on magnetic Luffa@TiO2 in food and water samples

    Ahmed, Hassan Elzain Hassan / Mohammed, Ali Mohammednour Ali / Soylak, Mustafa

    Food Chemistry. 2023 Dec., v. 428 p.136794-

    2023  

    Abstract: A novel magnetic Luffa@TiO₂ sorbent was synthesized and characterized by using XRD, FTIR and SEM techniques. Magnetic Luffa@TiO₂ was used for solid phase extraction of Pb(II) in food and water samples prior to its flame atomic absorption spectrometric ( ... ...

    Abstract A novel magnetic Luffa@TiO₂ sorbent was synthesized and characterized by using XRD, FTIR and SEM techniques. Magnetic Luffa@TiO₂ was used for solid phase extraction of Pb(II) in food and water samples prior to its flame atomic absorption spectrometric (FAAS) detection. The analytical parameters such as pH, adsorbent quantity, type and volume of eluent, and foreign ions were optimized. Analytical features such as the limit of detection (LOD) and the limit of quantification (LOQ) of Pb(II) are 0.04 μg L⁻¹ and 0.13 μg L⁻¹ for liquid samples and 0.159 ng/g and 0.529 ng/g for solid samples, respectively. The preconcentration factor (PF) and relative standard deviation (RSD%) were found 50, and 4 % respectively. The method was validated by using three certified reference materials (NIST SRM 1577b bovine liver, TMDA-53.3 and TMDA-64.3fortified water). The presented method was applied to lead contents of some food and natural water samples.
    Keywords adsorbents ; atomic absorption spectrometry ; cattle ; detection limit ; food chemistry ; liquids ; liver ; magnetism ; pH ; solid phase extraction ; standard deviation ; Luffa@TiO2 ; Preconcentration ; Lead ; Flame atomic absorption spectrometry
    Language English
    Dates of publication 2023-12
    Publishing place Elsevier Ltd
    Document type Article ; Online
    ZDB-ID 243123-3
    ISSN 1873-7072 ; 0308-8146
    ISSN (online) 1873-7072
    ISSN 0308-8146
    DOI 10.1016/j.foodchem.2023.136794
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  7. Article ; Online: Nanodiamond (ND)-Based ND@CuAl

    Bouali, Wiem / Kurtay, Gülbin / Genç, Asena Ayşe / Ahmed, Hassan Elzain Hassan / Soylak, Mustafa / Erk, Nevin / Karimi-Maleh, Hassan

    Environmental research

    2023  Volume 238, Issue Pt 1, Page(s) 117166

    Abstract: Tofacitinib (TOF) is gaining recognition as a potent therapeutic agent for a variety of autoimmune disorders, including rheumatoid arthritis and psoriasis. Ensuring precise drug concentration control during treatment necessitates a rapid and sensitive ... ...

    Abstract Tofacitinib (TOF) is gaining recognition as a potent therapeutic agent for a variety of autoimmune disorders, including rheumatoid arthritis and psoriasis. Ensuring precise drug concentration control during treatment necessitates a rapid and sensitive detection method. This study introduces a novel electrochemical sensor employing a composite of nanodiamond (ND), copper aluminate spinel oxide (CuAl
    MeSH term(s) Humans ; Graphite/chemistry ; Molecular Docking Simulation ; Nanodiamonds ; Limit of Detection ; Carbon/chemistry ; Oxides/chemistry ; Autoimmune Diseases
    Chemical Substances Graphite (7782-42-5) ; Nanodiamonds ; tofacitinib (87LA6FU830) ; Carbon (7440-44-0) ; Oxides
    Language English
    Publishing date 2023-09-21
    Publishing country Netherlands
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 205699-9
    ISSN 1096-0953 ; 0013-9351
    ISSN (online) 1096-0953
    ISSN 0013-9351
    DOI 10.1016/j.envres.2023.117166
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