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Now showing items 11-20 of 20
Kinetic spectrophotometric determination of trace copper(II) ions by their catalytic effect on the reduction of brilliant cresyl blue by ascorbic acid
(2011)
In the present study, a novel catalytic-kinetic spectrophotometric method was developed for the determination of trace amounts of copper. It is based on the catalytic effect of Cu(II) on the reduction of brilliant cresyl ...
Determination of Bisphenol A in Beverage Samples Using Ultrasonic- Extraction and Atomic Absorption Spectrometry
(2017)
In this work, a simple and versatile ultrasound-assisted extraction (UAE) procedure, which provides high separation efficiency for bisphenol A (BPA), was developed for its indirect determination in beverages in contact ...
Palladium-catalysed Suzuki{Miyaura cross-coupling with imidazolylidene ligandssubstituted by crowded resorcinarenyl and calixarenyl units
(2015)
TwoN-heterocyclic carbene (NHC) palladium complexes of formula [PdBr2(NHC)(pyridine)] in which thecarbenic ring is anked by sterically crowded cavitand substituents were prepared from appropriate imidazolium saltsbearing ...
Yeni rutenyum-azol komplekslerinin sentezi ve antioksidan özellikleri
(2017)
Bu çalışmada, iki yeni dikloro-(1-alkilimidazolin)-(p-simen)rutenyum(II), 3 ve dikloro-(1-alkilbenzimidazol)-(psimen)rutenyum(II), 4 kompleksi sentezlendi ve yapıları spektroskopik tekniklerle karakterize edildi. Bu yeni ...
Some Heavy Metal Contents of Various Slaughtered Cattle
(2017)
As a result of environmental pollution and food chain, heavy metals may accumulate in human or animal bodies. Toxic metals cause inhibition on chemical and enzyme reactions in cells. Therefore, a negative situation forms ...
A simple and efficient approach for preconcentration of some heavy metals incosmetic products before their determinations by ame atomic absorptionspectrometry
(2016)
In the current study, a simple and efficient analytical method for preconcentration and determination ofCd(II), Pb(II), and Sn(II) in some cosmetic samples, using ultrasonic assisted-cloud point extraction and ame ...
Grafen Oksitin Ksantin Oksidaz Aktivitesi Üzerine İn Vitro Etkisinin İncelenmesi
(2017)
Grafen karbon atomlarının altıgen bir kafes şeklinde düzenlenmesi ile oluşan iki boyutlu bir yapıdır ve biyolojik sistemlerin de dahil olduğu çeşitli uygulama alanlarına sahiptir. Bu çalışmada grafen oksitin (GO) pürin ...
DETERMINATION OF THERMAL PROPERTIES OF A82 ORGANIC PHASE CHANGE MATERIAL EMBEDDED WITH DIFFERENT TYPE NANOPARTICLES
(2018)
The low thermal conductivities of organic phase-change materials must be increased so that they can be used effectively in practice. In this work, it is aimed to enhance the thermal conductivity of PCM by adding nanoparticles ...
Nijerya’da Yetiştirilen Ocimum canum (Sims) Çiçek Esansiyel Yağının Kimyasal Bileşimi ve Antibakteriyel Aktivitesi Üzerine Toplama Zamanının Etkisi
(2017)
Bir günün farklı zamanlarında (7 öö, 10 öö, 1 ös, 4 ös, 7 ös) hasat edilen Ocimum canum çiçekleri (1000 g) ayrı ayrı hidrodistilasyona tabi tutulmuş ve %0,19-0,27 (w/w) esansiyel yağ vermiştir. GC ve GC-MS analizleri, ...
FORMIL KROMON SCHIFF BAZLARININ ANT?OKS?DAN AKT?V?TELER?N?N DFT ÇALIŞMASI
(2015)
Besinlerdeki antioksidan bileşikler, sağlığı koruyucu unsurlar olarak önemli rol oynarlar. Bilimsel kanıtlar, antioksidanların kanser ve kalp hastalıkları gibi kronik hastalıklar için riski azaltabildiklerini göstermektedir. ...