Umaz, Adil

Umaz, Adil

Job Title

Doktor Öğretim Üyesi

Email Address

adilumaz@artuklu.edu.tr

Main Affiliation

Department of Medical Services and Techniques / Tıbbi Hizmetler ve Teknikleri Bölümü

Scholarly Output

14

Articles

16

Citation Count

58

Supervised Theses

0 Scholarly Output Search Results

Now showing 1 - 10 of 14

Determination of zinc in dried nuts by slotted quartz tube-flame atomic absorption spectrometry (SQT-FAAS) with citric acid-coated magnetic nanoparticle (CAMNP) based solid phase extraction (SPE)
(Taylor & Francis inc, 2025) Umaz, Adil; Umaz, Adil; Aydin, Isil; Aydin, Firat
This study reports a sensitive method for trace zinc using slotted quartz tube-flame atomic absorption spectrometry (SQT-FAAS) with citric acid-coated magnetic nanoparticle-solid phase extraction (CAMNP-SPE). To increase the efficiency, we univariately optimized the pH, buffer volume, CAMNP mass, eluent concentration and volume, mixing type and time, temperature, and interaction time. The study identified the limits of detection and quantification values for CAMNP-SPE-SQT-FAAS under the specified optimum conditions to be 12.30 and 41.00 mu g L-1, respectively. The newly developed method improved the detection power of traditional FAAS by 13.25 times. The findings of this study report a sensitive and accurate method to determine trace zinc in complex matrices.
Investigation of Changes Against Time in the Artificial Gastric Liquid Medium of Pesticide Active Substances
(2021) Umaz, Adil; Umaz, Adil; Elmastaş, Ayhan
In this study, grown tomato samples were examined changes of pesticide active substances by two different methods in the artificial gastric liquid (AGL) medium prepared. In the first method, Trifloxystrobin and Imidacloprid pesticide active substances were sprayed on the tomato samples before the harvest period. Time-dependent change of the active substance of Trifloxystrobin; although initially 83.17 ng g-1, it was determined as 24.71 ng g-1 in 240 min. The concentration of this active substance was determined that decreased with time and the % change was 70.29. While Imidacloprid active substance initially was 10.20 ng g-1, it was determined as 10.32 ng g-1 at 240 min. It was determined that this active substance did not change between the first and the last concentration depending on the time. In the second method, 75 pesticide active substances were spiked to the tomato sample and the time-dependent change in the AGL medium was examined. The concentration of 10 active substances that above 70% of the change rate was determined that there was a statistical decrease depending on the time % changes in the range between 0-240 min. The concentration of 30 active substances in below 70% of the change rate was determined that did not a statistical decrease as depending on time. however, % changes were observed that there was a certain thought at different rates between the first and the last concentration after 240 min. The last 15 active substances 240 min concentrations were determined that increased of % changes compared to 0 min.
İki Farklı Lokasyona ait Altın Otunun (Helichrysum arenarium) Uçucu Bileşenlerinin Belirlenmesi ve Karşılaştırılması
(Gümüşhane Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2020) Umaz, Adil; Umaz, Kader
Bu çalışmada, 2019 yılı Haziran-Ağustos ayında iki farklı bölgede toplanan Altın Otunun (Helichrysum arenarium) Katı Faz Mikro Ekstraksiyon (SPME) yöntemi kullanılarak uçucu bileşenleri Gaz Kromatografisi-Kütle Spektroskopisi (GC-MS) ile belirlendi. Bitlis Nemrut Krater Gölü çevresindeki Altın Otu örneğinde toplam 21 adet uçucu bileşen tespit edilirken, Giresun’un Şebinkarahisar İlçesi’nin dağlık bölgelerindeki Altın Otu örneğinde toplam 33 adet uçucu bileşen tespit edildi. Bitlis Nemrut Krater Gölü çevresindeki Altın Otunda α-sedren (%26.65), α-pinen (%14.97), α-humulen (%10.65), aromadendren (%6.79), α-kurkumen (%6.31), germakren B (%4.43), α-kadinen (%3.82), ökaliptol (%3.57), α-duprezianen (%3.57) ve limonen (%2.69) uçucu ana bileşen olarak tespit edilirken, Giresun Şebinkarahisar İlçesinin dağlık alanlarındaki Altın Otuna ait örnekte α-pinen (%47.63), α-himakhalen (%17.01), α-humulen (%5.21), δ-kadinen (%4.98), γ-kadinen (%4.01) ve ökaliptol (%3.46) uçucu ana bileşen olarak tespit edildi.
Hypericum Triquetrifolium Turra Bitkisinden Gümüş Nanopartiküllerin Sentezi, Karekterizasyonu ve Antimikrobial Etkinliğinin İncelenmesi
(2019) Umaz, Adil; Keskin, Cumali; Baran, Mehmet Fırat; Koç, Adil; Keskin, Cumali
Bu çalışmada, biyolojik yöntemle Hypericum triquetrifolium Turra bitkisi kullanılarak gümüşnanopartiküller (AgNP) sentezlendi. Sentezlenen gümüş nanopartiküller (AgNP) Fourier Transformİnfrared Spektroskopisi (FT-IR), Ultraviyole/Görünür Işık Absorpsiyon Spektrofotometresi (UV-vis),X-Işını Kırınımı (XRD), Taramalı Elektron Mikroskobu (SEM), Enerji Dağılımlı X-ışını (EDAX) veTermogravimetrik-Difarensiyel Termal Analiz (TGA-DTA) gibi spektroskopik yöntemler kullanılarakaydınlatıldı. Sentezlenen gümüş nanopartiküllerin mikroorganizmalar üzerindeki antimikrobiyalaktiviteleri incelenmiştir.
Determination of hydroxymethylfurfural in Turkish honeys, pekmez (grape molasses), and jam samples by high-performance liquid chromatography with diode array detection
(Wiley Online Library, 2022) Umaz, Adil; Aydin, Firat; Umaz, Adil; Kılınc, Ersin; Arslan, Yasin; aydin, Isil
Hydroxymethylfurfural (HMF) is a chemical contaminant that is not naturally present in carbohydrate-containing food samples. The HMF amounts were changed between 4.8 and 214.1 mg/kg in honey; between 7.8 and 204.0 mg/kg in pekmez (grape molasses); between 5.9 and 22.4 mg/kg in strawberry jam; between 6.0 and 65.4 mg/kg in apricot jam; and between 9.2 and 55.9 mg/kg in cherry found by HPLC. The linear calibration plot of HMF was ranged from 0.05 to 10.0 mu g/ml. The correlation coefficient was found to be 0.99997. LOD and LOQ values were found to be 12.0 and 40.0 ng/ml, respectively. According to the experimental results, HMF amounts of four honey samples, three pekmez (grape molasses) samples, one apricot jam, and one cherry jam for investigated samples were found to be higher than the permission amount of Turkish Food Codex. Novelty impact statement Based on experimental results in this study, if the honey is in a transparent package such as a glass, it should be stored in a dark environment. It would be healthier to prefer molasses produced by reliable brands at low temperatures under vacuum instead of molasses made with traditional methods in open boilers. Generally, since jams with high HMF amount have an overcooked or even burnt flavor, this is an extremely negative situation for consumers.
An Investigation and Comparison of Concentration Change in Simulated Body Fluid Medium Conditions of the Calcium Element in 27 Different Salvia Species
(Istanbul Univ, Fac Pharmacy, 2023) Umaz, Adil; Aydin, Firat; Firat, Mehmet; Yener, Ismail; Ertas, Abdulselam; Elmastas, Ayhan
Background and Aims: In this study, calcium (Ca) element concentration changes of Salvia species in simulated body fluid (SBF) medium conditions were investigated and the results in these medium conditions were compared with each other.Methods: Salvia species samples were air-dried and ground into powder. Salvia species was prepared as a herbal tea. Pre-pared teas were left in three different SBF medium conditions. The samples were analyzed using Flame Atomic Absorption Spectroscopy (FAAS) method to determine the Ca absorptions. Also, a correlation analysis of the results obtained in three different SBF medium conditions and the species in simulated gastric fluid (SGF) medium conditions was performed.Results: When the SBF medium conditions were compared, it was determined that the highest Ca absorption of all Salvia species occurred in the SGF conditions. Thus, it can be said that the Ca in plants and foods occurs in the gastric fluid medium and its absorption occurs there. When the result of the correlation analysis was evaluated, it was determined that there was a stronger correlation between the SGF and simulated intestinal fluid (SIF) mediums compared to other mediums.Conclusion: The Ca absorption was determined according to what remained in the SGF the most. Based on the results ob-tained from SBF medium conditions, it can be said which element is taken in which body fluid medium. Information on the differences between samples belonging to different SBF medium conditions was not obtained. However, when the simulated fluid medium conditions were evaluated individually, information was obtained for two or more samples.
Gümüş nanomalzeme sentezi ve antimikrobiyal uygulamaları
(2019) Umaz, Adil; Baran, Mehmet Fırat; Umaz, Adil
Çevre dostu sentez yöntemlerinin her geçen gün daha etkin olması ve nanopartiküllerin (NP’lerin) kullanım alanlarının yaygınlığı bu yöntemlere olan ilginin oldukça artmasına neden olmaktadır. Biz atık durumunda ki zeytin yapraklarından elde ettiğimiz özüt ile gümüş nano partikülleri (AgNP’leri) basit, ucuz ve çevre dostu bir yöntemle sentezledik. Bu partiküllerin Ultraviyole ve Görünür Işık Absorpsiyon Spektroskopi (UVVis.), Fourıer Dönüşümlü Kızılötesi Spektroskopisi (FTIR), X-Işınları Kırınım Cihazı (XRD), Taramalı Elektron Mikroskobu- Enerji Yayılımlı X-ışını (SEM-EDX) ve Termo Gravimetrik (TGA-DTA) analizleri kullanılarak karakterizasyon işlemi yapılmıştır. Antibiyotik dirençliliği günümüz dünyasının ciddi sorunlarından biri bu sebeple elde edilen partiküllerin patojen gram pozitif Staphylococcus aureus ATCC 29213, gram negatif Escherichia coli ATCC 25922 suşları ve Candida albicans mayası üzerinde etkili bir anti-mikrobiyal aktivite gösterdiği tespit edilmiştir. AgNP’lerin MİK (Minimum İnhibisyon Konsantarasyon) değerleri sırası 0.112, 0.028, ve 0.007 olarak bulunmuştur
Fe3O4@SA MNCs Synthesis, Characterization, and First-time Use in Hydrogen Production by NaBH4 Hydrolysis
(Turkish Chemical Society, 2024) Umaz, Adil
Hydrogen is a clean energy carrier that will reduce dependence on fossil fuels and contribute to reducing the harmful effects on the environment resulting from using fossil fuels. Hydrogen is produced by the hydrolysis of sodium borohydride (NaBH4), one of the chemical hydrides, using a catalyst. In this study, Fe3O4@Salicylic acid magnetic nano-catalyst (Fe3O4@SA MNCs) was synthesized using the co-precipitation technique. The structural, physical, and chemical properties of the produced Fe3O4@SA MNCs were characterized by FT-IR, XRD, VSM, SEM, and SEM-EDX methods. At room temperature, the effect on hydrogen production performance was examined in the amounts of Fe3O4@SA MNCs (10, 25, 50, 75, and 100 mg), NaOH (0, 10, 20, and 25 mg), and NaBH4 (25, 50, 100, 150 and 200 mg). The highest hydrogen generation rates (HGR) were obtained using 10 mg Fe3O4@SA MNCs, 150 mg NaBH4, and 0 mg NaOH at room temperature. The obtained HGR value was calculated as 400 mL gcat-1.min-1. Fe3O4@SA MNCs were used for hydrogen production for the first time in this study. This study showed that Fe3O4@SA MNCs exhibit catalytic properties and are a promising, efficient catalyst in hydrogen production from NaBH4.
Determination and comparison of metal analysis in the species belonging to different families by inductively coupled plasma-mass spectrometry (ICP-MS)
(International Journal of Chemistry and Technology (IJCT), 2022) Umaz, Adil; Aydın, Fırat; Fırat, Mehmet; Ertaş, Abdulselam
The consumption of plants and their use for medicinal purposes are increasing day by day. Therefore, knowing the plant contents is important for human health. In this study, metal contents of nineteen species belonging to four different families were determined. Different species belonging to the same genus belonging to these families and metal contents of different parts of the same sample were compared with each other. The metal contents of different species of the same genus have been determined that be different from each other. The metal contents of different parts of the same species were determined that be different from each other. In addition, the Cd and Pb metal content results of the species were compared with the maximum allowable concentration values in raw plant material of the World Health Organization's (WHO). Cd metal content in all species was found to be higher than the value determined by the WHO. Only the Pb metal content of the A3 species was found to be higher than the value determined by WHO.
Determination and comparison of metal contents in simulated body fluid medium conditions of the plant species by flame atomic absorption spectrometry (FAAS)
(Journal of Research in Pharmacy, 2022) Umaz, Adil; Firat, Aydin; Tokul Olmez, Ozge; Firat, Mehmet; Ertas, Abdulselame; Aydin, Isil
ABSTRACT: The importance of plants in folk medicine and scientific studies is increasing day by day. In this context, the plants pose a danger to human health when they are eaten by the public, consumed as herbal tea or used as medicinal plants especially the toxic metals in their composition. For this reason, determining the macro, micro and toxic element content in the plants is important for health. In this study; the metal contents of root and aerial parts of nine different Salvia species were determined and the chemometric evaluation of the obtained results was made. In the principal component analysis (PCA) made with 20 elements of Salvia species, it was determined that the first two principal components explained 62.60% of the variance and the first six principal components explained 92.70%. When PCA and hierarchical cluster analysis (HCA) results are evaluated; the parts of Salvia species root and aerial parts were determined that were not clearly separated and there was no regional grouping. In addition, Salvia species prepared as herbal tea was left to different simulated body fluid medium conditions, and the changes in metal contents were examined. It was determined that were taken up Cr, Cd, Pb, Cu, Zn metals in the simulated saliva fluid (SSF), Ni, Mn metals in the simulated gastric fluid (SGF), and Na, K metals in the simulated intestinal fluid (SIF). It was determined that Fe metal in almost all Salvia species was not taken from three simulated body fluid mediums. Thus, elements determined which were taken up in body fluid mediums.