Person: GAZİOĞLU, IŞIL
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Kurumdan Ayrılmıştır
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Publication Metadata only Determination of Polycyclic Aromatic Hydrocarbons in Nutritional Supplements by Fabric Phase Sorptive Extraction (FPSE) with High-Performance Liquid Chromatography (HPLC) with Fluorescence Detection(2020-01-01T00:00:00Z) GAZİOĞLU, IŞIL; Zengin, Ozge Sultan; Tartaglia, Angela; Locatelli, Marcello; Furton, Kenneth G.; Kabir, Abuzar; GAZİOĞLU, IŞILPublication Metadata only Development of sol-gel phenyl/methyl/poly (dimethylsiloxane) sorbent coating for fabric phase sorptive extraction and its application in monitoring human exposure to selected polycyclic aromatic hydrocarbons using high performance liquid chromatography-fluorescence detection(2021-01-01T00:00:00Z) GAZİOĞLU, IŞIL; Kabir, Abuzar; Zengin, Ozge S.; Tekkeli, Evrim Kepekci; Furton, Kenneth G.; Tartaglia, Angela; Locatelli, Marcello; GAZİOĞLU, IŞIL; TEKKELİ, ŞERİFE EVRİMFollowing the convenient, yet very powerful pathway to create designer extraction sorbent using sol-gel chemistry, a novel sol-gel phenyl/methyl/poly(dimethylsiloxane) sorbent coating was created on polyester fabric substrate for fabric phase sorptive extraction (FPSE) and was subsequently applied to monitor human exposure to selected polycyclic aromatic hydrocarbons (PAHs) including pyrene, chrysene, and benzo[a]pyrene in plasma samples obtained from tobacco smoker volunteers using high performance liquid chromatography fluorescence detector (HPLC-FLD). A rapid FPSE-HPLC-FLD method was developed that adequately resolved the PAHs chromatographically, after their successful extraction from human plasma using fabric phase absorption extraction (FPSE) and subsequently analysed in the liquid chromatographic system by means of an analytical column (InterSustain C-18 column 150 x 4.6 mm, 5 mu m) using acetonitrile (ACN) and water as mobile phases in gradient elution mode. With the optimized conditions, the retention times were found to be 6.168, 7.214, and 10.404 min for pyrene, chrysene, and benzo[a]pyrene, respectively. The total chromatographic runtime was limited to 12.5 min.Publication Metadata only Simultaneous determination of febuxostat and montelukast in human plasma using fabric phase sorptive extraction and high performance liquid chromatography-fluorimetric detection.(2021-12-05T00:00:00Z) Evrim Kepekci Tekkeli, S; Tartaglia, Angela; Aslan, Ceylin; Locatelli, Marcello; Kabir, Abuzar; GAZİOĞLU, IŞIL; TEKKELİ, ŞERİFE EVRİMPublication Metadata only Spectrofluorimetric Determination of Aflatoxin B-1 in Winter Herbal Teas via Magnetic Solid Phase Extraction Method by using Metal-Organic Framework (MOF) Hybrid Structures Anchored with Magnetic Nanoparticles(2020-01-09T00:00:00Z) Durmus, Zehra; Kurt, BELMA; GAZİOĞLU, IŞIL; SEVGİ, ECE; Hancer, Cagla Kizilarslan; ZENGİN KURT, BELMA; GAZİOĞLU, IŞIL; SEVGİ, ECE; KIZILARSLAN HANÇER, ÇAĞLAMIL53(Al)-SiO2@Fe3O4 composite was prepared by co-precipitation route with a typical Stober synthetic process and ultrasonic-agitation, then subsequently utilized as a multi-component novel sorbent in solid-phase microextraction (SPME) of aflatoxin B1 in winter herbal teas. Microstructural properties of MIL53(Al)-SiO2@Fe3O4 composite was characterized by using Fourier transform infrared (FTIR) spectroscopy, powder X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) methods, and Brunauer-Emmett-Teller (BET) surface area measurement. The MIL53(Al)-SiO2@Fe3O4 composite was found to be a very effective sorbent in spectrofluorimetric determination of aflatoxin B1 (AFB1) in winter herbal teas via magnetic solid-phase extraction (SPE) route. The proposed method showed a wide linear range from 0.5 to 150 ng/ml, low limit of detection (LOD = 0.5 ng/ml), and an acceptable recovery values (70.7-96.5%) in real samples analysis. This study shows that the suggested method possesses an important potential to use for detecting AFB1 in quality control laboratories.