Determination of compositions of some metal-ligand complexes by HPTLC-densitometry

Merdivan, M
Aygün, Rüveyde Sezer
Kulcu, N
The well known methods of Job's continuous variations and mole-ratio were used for the determination of the compositions of some metal-N,N-diethyl-N'-benzoyl-thiourea complexes chromatographically using HPTLC-densitometry. A different and a simple application of these two methods makes the determination of the composition of metal-ligand complexes possible even when the maximum absorption wavelengths of ligand and complexes are close to each other.


Characterization of one-step deposited Cu2ZnSnS4 thin films derived from a single crystalline powder
Peksu, Elif; Terlemezoğlu, Makbule; Parlak, Mehmet; Karaağaç, Hakan (Elsevier BV, 2019-12-01)
In this paper, Cu-deficient and Zn-rich Cu2ZnSnS4 (CZTS) single crystals were successfully grown by Bridgman technique. Following the investigation of structural and photo-electrical properties of the grown CZTS crystal, the powder extracted from it was evaporated through electron-beam technique for the fabrication of CZTS thin films by one-step deposition. Compositional analysis revealed that CZTS thin films were obtained with a composition stoichiometry very close to that measured for the crystal powder. ...
Determination of zinc in aerosol samples by discrete nebulization flame atomic absorption spectrometry
Sarica, DY; Akim, D; Ozden, T (2002-01-01)
A well-known analytical method, "discrete nebulization", which is suitable for samples having a limited amount like body fluids, high solid content or salt solutions, and less volatile metals, has been further developed for zinc determination in aerosol samples.
Development of electrochemical biosensors with various types of zeolites
Soldatkina, O. V.; Kucherenko, I. S.; Soldatkin, O. O.; Pyeshkova, V. M.; Dudchenko, O. Y.; Kurc, B. Akata; Dzyadevych, S. V. (2019-07-01)
In the work, different types of zeolites were used for the development of enzyme-based electrochemical biosensors. Zeolites were added to the biorecognition elements of the biosensors and served as additional components of the biomembranes or adsorbents for enzymes. Three types of biosensors (conductometric, amperometric and potentiometric) were studied. The developed biosensors were compared with the similar biosensors without zeolites. The biosensors contained the following enzymes: urease, glucose oxidas...
Determination of cadmium in high salt content matrices by flow injection cold vapor atomic absorption spectrometry
Alp, Orkun; Demiroz, Hakan; Ataman, Osman Yavuz; ERTAŞ, Nusret (2012-01-01)
Flow injection cold vapor atomic absorption spectrometry (FI-CVAAS) was used for determination of cadmium in high salt matrices such as dialysis concentrates and textile leach solutions. The parameters such as acidity, concentration of reducing agent, reaction coil length, and carrier gas flow rate were investigated to obtain the best sensitivity. No significant background signal was observed even at high salt concentrations. Under the optimized conditions the limit of detection value (3s(b) m(-1), where s(...
Analysis of glow curve of GaS0.5Se0.5 single crystals
IŞIK, MEHMET; Delice, Serdar; Hasanlı, Nızamı (2015-12-01)
Characterization of shallow trapping centers in GaS0.5Se0.5 crystals grown by a Bridgman method was carried out in the present work using thermoluminescence (TL) measurements performed in the low temperature range of 10-300 K. The activation energies of the trapping centers were obtained under the light of results of various analysis methods. The presence of three trapping centers located at 6, 30 and 72 meV was revealed. The analysis of the experimental glow curve gave reasonable results under the model th...
Citation Formats
M. Merdivan, R. S. Aygün, and N. Kulcu, “Determination of compositions of some metal-ligand complexes by HPTLC-densitometry,” SPECTROSCOPY LETTERS, pp. 87–98, 1998, Accessed: 00, 2020. [Online]. Available: