A5028474258- Molecular Sensors and Ion Detection
- Porphyrin and Phthalocyanine Chemistry
- Analytical Chemistry and Sensors
- Analytical chemistry methods development
- Electrochemical Analysis and Applications
- Electrochemical sensors and biosensors
- Oxidative Organic Chemistry Reactions
- Radioactive element chemistry and processing
- Metal complexes synthesis and properties
- Inorganic and Organometallic Chemistry
- Metal-Catalyzed Oxygenation Mechanisms
- Photochromic and Fluorescence Chemistry
- Porphyrin Metabolism and Disorders
- Luminescence and Fluorescent Materials
- Extraction and Separation Processes
- Analytical Methods in Pharmaceuticals
- Synthetic Organic Chemistry Methods
- Dye analysis and toxicity
- Environmental and Analytical Chemistry Studies
- Essential Oils and Antimicrobial Activity
- Lanthanide and Transition Metal Complexes
- Magnetism in coordination complexes
- Chemical Synthesis and Characterization
- Synthesis and Characterization of Heterocyclic Compounds
- Biochemical Analysis and Sensing Techniques
Karadeniz Technical University
2002-2018
Giresun University
2004-2008
University of Kansas
1995
An efficient method was developed for the simultaneous determination of Sunset Yellow FCF (E110), Allura Red AC (E129), Quinoline WS (E104), and Tartrazine (E102) in food samples by RP-HPLC. The mentioned dyes were analyzed at room temperature 23 min with gradient elution. Three mobile phases used elution, phase A an acetate buffer (pH = 7.5, 1%), B acetonitrile, C methanol. flow rate 1.0 mL −1 , injection volume 20 µ L. linear ranges 0.72–50 mg L 0.24–50 0.75–10 0.69–50 Tartrazine, WS, FCF,...
Abstract Two new macrocyclic Schiff bases, (5) and (7), containing nitrogen‐sulfur donor atoms were designed synthesized by reaction of α,α′ bis(o‐aminophenylthio)‐1,2‐xylene with glyoxal phthaldialdehyde, respectively. The liquid‐liquid extraction metal picrates such as Ag+, Hg2+, Cd2+, Zn2+, Cu2+, Ni2+, Mn2+, K+, Na+ from aqueous phase to the organic was carried out using novel ligands. effect chloroform dichloromethane solvents over picrate extractions investigated at 25±0.1°C UV‐visible...
A simple and time-saving spectrofluorometric method developed using an azaflavanon-3-ol compound was used for the determination of iron in various food samples. Nitric acid hydrogen peroxide were digestion samples a closed microwave system. The validated by analyzing two certified reference materials (CRM-SA-C Sandy Soil C Mixed Polish Herbs INCT-MPH-2). Measurements carried out modified standard addition method. graph linear until 21.6 mg/L iron(III). Detection quantification limits 0.81...
A novel series of axially disubstituted silicon(iv) phthalocyanines bearing electropolymerizable ligands were designed and synthesized for the first time. The characterized by various spectroscopic techniques as well elemental analysis. aggregation behavior SiPcs examined in different solvents at concentrations chloroform. In all studied concentrations, non-aggregated. thermal was also studied. electropolymerization properties investigated cyclic square wave voltammetry. This study is...
Abstract The novel (E,E)‐dioxime 5,6:13,14‐dibenzo‐9,10‐benzo(15‐crown‐5)‐2,3‐bis(hydroxyimino)‐7,12‐dioxo‐1,4,8,11‐tetraazacyclotetradecane (H 2 L) has been synthesized by the reaction of 4′,5′‐diaminobenzo(15‐crown‐5) with N,N′‐bis(2‐carbomethoxyphenyl)diaminoglyoxime (1). Only mononuclear Co III and Ru II complexes a metal/ligand ratio 1:2 have isolated. cobalt(III) complex bridged BF + is achieved H‐bonded borontrifluoride ethyl ether complex. bis(benzonitril)palladium(II) chloride gives...
A novel type of peripherally tetra-substituted as well axially disubstituted silicon(iv) phthalocyanine containing electropolymerizable ligands was designed and synthesized for the first time. Axial bis-hydroxy silicon 2 prepared from 2(3),9(10),16(17),23(24)-tetrakis-{2-[3-(diethylamino)phenoxy]ethoxy}phthalocyanine 1 in dichloromethane by using 1.8-diazabicyclo[5.4.0]undec-7-ene (DBU) trichlorosilane. Peripherally tetra di-substituted 4...
Purpose: To determine the heavy metal and trace element composition of powdered aerial parts Origanum sipyleum L. its water extract.Methods: The elements content plant material 2 % aqueous extract were evaluated by x-ray fluorescence spectroscopy with silicon drift detector SDD at a resolution 145 eV 10,000 pulses. process conditions 0.1 g sample weight, time 300 s voltage 25 kV 50 kV, current 0.5 1.0 mA under helium atmosphere.Results: major elements, K, Ca Na, known as macronutrients,...
Abstract Two new macrocyclic ligands, containing nitrogen and sulfur donor atoms were designed synthesized in a multi‐step reaction sequence. The macrocycles with amide group used solvent extraction of picrates metals such as Ag+, Hg2+, Cd2+, Zn2+, Cu2+, Ni2+, Mn2+, Co2+ Pb2+ from aqueous phase to the organic phase. metal picrate extractions investigated at 25±0.1°C by using UV‐visible spectrometry. extractability selectivity mentioned evaluated according solvents. values constants (log Kex)...
The new 2-[2-(6-tert-butyl-2H-1,3-benzoxazin-3(4H)-yl)ethoxy]ethanol 1 and 2-[2-(6-pentyl-2H-1,3-benzoxazin-3(4H)-yl)ethoxy]ethanol 2 have been synthesized. Axially disubstituted silicon phthalocyanines 3 4 synthesized by introducing at the axial positions of silicon(IV) phthalocyanine, respectively. electrochemical properties were also investigated cyclic voltammetry (CV) square wave voltammetry. Voltammetric studies show that while showed two reversible reduction one irreversible oxidation...
Synthetic procedures for new macrocyclic diamides with N2S4O3- and N2S5O3-donors were given. The corresponding ligands prepared by reaction of NaBH4 the in presence boron triflouride ethyl etherate dry tetrahydrofuran. solvent extraction method was used to evaluate metal-ion binding properties ligands. values constants (log K ex) complex compositions determined extracted complexes. experiments suggested that reduced N2S5O3-donor macrocycle has Ag+ selectivity compared Pb2+, Co2+, Ni2+, Mn2+,...
The treatment of boron(<sc>iii</sc>) subphthalocyanine chloride with 1,3-bis[3-(diethylamino)phenoxy]propan-2-ol <bold>2</bold> and 2,3-bis[3-(diethylamino)phenoxy]propan-1-ol <bold>4</bold> in toluene gave the corresponding axially substituted compounds <bold>3</bold> <bold>5</bold>.