606. F. Aydin, E. Yilmaz, E. Olmez, M. Soylak, Cu2O-CuO Ball Like/Multiwalled Carbon Nanotube Hybrid for Fast and Effective Ultrasound-assisted Solid Phase Extraction of Uranium at Ultra-trace Level prior to ICP-MS detection, Talanta, 207, 120295 (2020) https://doi.org/10.1016/j.talanta.2019.120295.

607. A. Sungur, A. Vural, A. Gundogdu, M. Soylak, Effect of Antimonite Mineralization Area on Heavy Metal Contents and Geochemical Fractions of Agricultural Soils in Gumushane Province, Turkey, Catena, 184, 104255 (2019). https://doi.org/10.1016/j.catena.2019.104255

608. Z.A. ALOthman, M.A. Habila, E. Yilmaz, E.A. Alabdullkarem, M. Soylak, A Novel Deep Eutectic Solvent Microextraction Procedure for Enrichment, Separation and Atomic Absorption Spectrometric Determination of Palladium at Ultra-trace Levels in Environmental Samples, Measurement, 153, 107394 (2020). https://doi.org/10.1016/j.measurement.2019.107394

609. D. Yuvali, I. Narin, M. Soylak, E. Yilmaz, Green Synthesis of Magnetic Carbon Nanodot/graphene Oxide Hybrid Material (Fe3O4@C-nanodot@GO) for Magnetic Solid Phase Extraction of Ibuprofen in Human Blood Samples prior to HPLC-DAD Determination, Journal of Pharmaceutical and Biomedical Analysis, 179, 113001 (2020). https://doi.org/10.1016/j.jpba.2019.113001

610M. Soylak, F. Uzcan, A Novel Ultrasonication-assisted Deep Eutectic Solvent Microextraction Procedure for Tartrazine at Trace Levels from Environmental Samples, Journal of the Iranian Chemical Society, 17,  461-467 (2020).

611. S. Kilic, M. Soylak, Determination of Trace Element Contaminants in Herbal Teas Using ICP-MS by Different Sample Preparation Method, Journal of Food Science and Technology-Mysore, 57, 927-933 (2020).

612. N. Ozkantar, M. Soylak, M. Tuzen, Ultrasonific-assisted Supramolecular Solvent Liquid-liquid Microextraction for Inorganic Chromium Speciation in Water Samples and Determination by UV-Vis Spectrophotometry, Atomic Spectroscopy, 41, 43-50 (2020).

613. F. Aydin, R. Cakmak, A. Levent, M. Soylak, Silica Gel-Immobilized 5-aminoisophthalohydrazide: A Novel Sorbent for Solid Phase Extraction of Cu, Zn and Pb from Natural Water Samples, Applied Organometallic Chemistry, 34, e5481 (2020) https://doi.org/10.1002/aoc.5481.

614. M.S. Yalcin, E. Kilinc, S. Ozdemir, U. Yuksel, M. Soylak,Phallus ImpudicusLoaded with γ-Fe2O3 as Solid Phase Bioextractor for thePreconcentrations of Zn(II) and Cr(III) from Water and Food Samples,Process Biochemistry, 92, 149-155(2020).

615. N. Ozkantar, E. Yilmaz, M. Soylak, M. Tuzen, Pyrocatechol Violet Impregnated Magnetic Graphene Oxide for Magnetic Solid Phase Microextraction of Copper in Water, Black Tea and Diet Supplements, Food Chemistry, 321, 126737 (2020) https://doi.org/10.1016/j.foodchem.2020.126737.

616M. Soylak, H.H. Gorucu, E. Yilmaz, Micelle-based Restricted Access Ion-pair Microextraction of Phosphate at Trace Levels in Water Samples for Separation, Preconcentration and Determination, The EuroBiotech Journal, 4, 89-96 (2020)

617. M. Hassan, Z. Erbas, U. Alshana, M. Soylak, Ligandless Reversed-phase Switchable hydrophilicity Solvent Liquid-liquid Microextraction Combined with Flame-atomic Absorption Spectrometry for the Determination of Copper in Oil Samples, Microchemical Journal, 156, 104868 (2020) https://doi.org/10.1016/j.microc.2020.104868.

618. S. Ozdemir, E. Kilinc, M.S. Yalcin, M. Soylak, F. Sen, A New Magnetized Thermophilic Bacteria to Preconcentrate Uranium and Thorium from Environmental Samples through Magnetic Solid-phase Extraction, Journal of Pharmaceutical and Biomedical Analysis, 186, 113315 (2020) https://doi.org/10.1016/j.jpba.2020.113315.

619. H.I. Ulusoy, K. Koseoglu, E. Yilmaz, M. Soylak, Simple and Sensitive Determination of Vitamin A and E in the Milk and Egg Yolk Samples by Using Dispersive Solid Phase Extraction with Newly Synthesized Polymeric Material, Journal of Food Composition and Analysis, 90, 103482 (2020) https://doi.org/10.1016/j.jfca.2020.103482.

620. S. Ulusoy, E. Yilmaz, Z. Erbas, H.I. Ulusoy, M. Soylak, Trace Analysis of Quercetin in Tea Samples by HPLC-DAD System by means of a New Nanocomposite Including Magnetic Core-shell, Separation Science and Technology, 55, 2025-2036 (2020).
621. M. Soylak, M. Celik, F. Uzcan, Supramolecular Solvent-based Microextraction of Sudan Orange G at Trace Levels for its Separation, Preconcentration and Spectrophotometric Determination, International Journal of Environmental Analytical Chemistry, 100, 935-944 (2020).
622. G.S. Kanberoglu, E. Yilmaz, M. Soylak, Fabrication and Characterization of SiO2@Fe3O4@nanodioamond for Vortex-assisted Magnetic Solid-phase Extraction of Lead in Cigarettes Samples prior to FAAS Detection, Journal of the Iranian Chemical Society, 17, 1627-1634 (2020).

623. Z. Erbas, R. Maulana, E. Yilmaz, S. Ozdemir, E. Kilinc, M. Soylak, Solid Phase Extraction of Copper as 1-(2-pyridylazo)-2-naphthol (PAN) Chelates on Coprinus AtramentariaInternational Journal of Environmental Analytical Chemistry, 100, 992-1003 (2020).

624. M.A. Habila, A. El-Marghany, M. Sheikh, A.A. Ghfar, B. Alhenaki, Z.A. ALOthman, M. Soylak, Metal Organic Frameworks Enhanced Dispersive Solid Phase Microextraction of Malathion before Detection by UHPLC-MS/MS, Journal of Separation Science, 43, 3103-3109 (2020).

625. M. Soylak, B. Ozdemir, E. Yilmaz, An Environmentally Friendly and Novel Amine-based Liquid Phase Microextraction of Quercetin in Food Samples prior to its Determination by UV-vis Spectrophotometry, Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 243, 118806 (2020) https://doi.org/10.1016/j.saa.2020.118806.

626. Z. Erbas, M. Soylak, A Green and Simple Liquid-phase Microextraction Based on Deep Eutectic Solvent for the Erythrosine prior to its UV-Vis Spectrophotometric Detection, Journal of the Iranian Chemical Society, 17, 2675-2681 (2020).

627. M.S. Jagirani, M. Soylak, A Review: Recent Advances in Solid Phase Microextraction of Toxic Pollutants Using Nanotechnology Scenario, Microchemical Journal, 159, 105436 (2020) https://doi.org/10.1016/j.microc.2020.105436.

628. S. Duman, Z. Erbas, M. Soylak, Ultrasound-assisted Magnetic Solid Phase Microextraction of Patent Blue V on Magnetic Multiwalled Carbon Nanotubes prior to its Spectrophotometric Determination, Microchemical Journal, 159, 105468 (2020) https://doi.org/10.1016/j.microc.2020.105468.

629. U. Alshana, M. Hassan, M. Al-Nidawi, E. Yilmaz, M. Soylak, Switchable-hydrophilicity Solvent Liquid-liquid Microextraction, TRAC Trends in Analytical Chemistry, 131, 116025 (2020) https://doi.org/10.1016/j.trac.2020.116025.

630. W.A. Khan, M.B. Arain, M. Soylak, Nanomaterials-based Solid Phase Extraction and Solid Phase Microextraction for Heavy Metals Food Toxicity, Food and Chemical Toxicology, 145, 111704 (2020) https://doi.org/10.1016/j.fct.2020.111704.

631. M.A. Habila, N. AlMasoud, T.S. Alomar, Z.A. Alothman, E. Yilmaz, M. Soylak, Deep Eutectic Solvent-based Microextraction of Lead(II) Traces from Water and Aqueous Extracts before FAAS Measurements, Molecules, 25, 4794 (2020) doi:10.3390/molecules25204794.

632. N. AlMasoud, M.A. Habila, Z.A. Alothman, T.S. Alomar, N. Alraqibah, M. Sheikh, A.A. Ghfar, M. Soylak, Nano-clay as Solid Phase Microextractor of Copper, Cadmium and Lead for Ultra-trace Quantification by ICP-MS, Analytical Methods, 12, 4949-4955 (2020).