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	Different metabolic pathwazy of the origin of hyperhomosysteinemia Přistoupilová, K. ; Přistoupil, T. I. ; Navrátil, Tomáš ; Heyrovský, Michael ; Šenholdová, Z. ; Kohlíková, E. ; Petr, M. Our voltammetric method of estimation of thiodiglycolic acid (TDGA) in urine was used in case of a woman suffering from rare inborn inability to metylate homocysteine (HoCySH). The aim of this pilot study was to shed more light on the interrelationship among vitamin B.sub.12./sub., folates, and betaine used for her cure. On the basis of the achieved results we were able to modify our earlier published metabolic scheme. It comprises 3 metabolic pathways starting from serine, and three metabolic pathways starting from HoCySH. Detailed record
	Výzkum atomových vlastností s použitím ionizačního potenciálu a Zlatého poměru Heyrovská, Rajalakshmi It was recently shown, that the Golden ratio divides the Bohr radius of hydrogen into the Golden sections due to electrostatistic reasons. Detailed record
	Voltammetric behavior of electrodes on the base of heterogenous silver and graphite composites Navrátil, Tomáš ; Kopanica, Miloslav ; Šebková, Světlana The voltammetric behavior of electrodes based on heterogenous silver and graphite composites was tested in this work. Such electrodes are a silver composite electrode, which contains a mixture of silver and graphite powder dispersed in metacrylate resin, and a graphite composite electrode formed by graphite powder in epoxy resin. The use of composite electrodes offers very good alternative to the use of mercury electrodes. Detailed record
	Voltammetric Determination of one of Styrene Metabolites - Phenylglyoxylic Acid - in Urine Using Graphite Composite Electrode Navrátil, Tomáš ; Shanmugam, K. ; Šenholdová, Z. ; Heyrovský, Michael ; Surovcová, H. Phenylglyoxylic acid is metabolized in human body from vinylbenzene (styrene) (from which polystyrene is produced). Presented work deals with determination of this metabolite in human urine using carbon composite electrode. Detailed record
	Silver Composite Electrode for Voltammetric Determination of Halides Šebková, Světlana ; Navrátil, Tomáš ; Kopanica, M. The application of the silver composite electrode prepared from silver, graphite powder and methacrylate resin for the voltammetric determination of halogenide ions was studied. Detailed record
	Voltametrické stanovení kyseliny Thiodiglykolové v moči osob exponovaných i neexponovaných Šenholdová-Dlasková, Z. ; Navrátil, Tomáš ; Heyrovský, Michael Detailed record
	Determination of Cystine, Cysteine and Homocysteine in Biological Matrix Bašová, Pavlína ; Navrátil, Tomáš ; Šestáková, Ivana ; Novotný, Ladislav ; Šenholdová-Dlasková, Z. In order to determine cystine, cysteine and homocysteine contents separately in a mixture of these compounds in real urine samples from patients suffering from cystinuremia and homocistinuremia, three voltammetric methods were tested: Brdička reaction, reduction of their complexes with copper ions and cathodic reduction of cystine. In all cases the hanging mercury drop electrode was used. Detailed record
	Study of Interactions of Damaged DNA with Osmium Complexes Using Elimination Voltammetry with Linear Scan Navrátil, Tomáš ; Josypčuk, Bohdan Complexes of Os(L), where L means tertiary amines, proved to be very effective labels of structure, electroactivity or damage of deoxyribonucleic acid (DNA). In this work thymine- Os(bipyridine) complexes and signals belonging to the catalytic hydrogen evolution were studied using elimination voltammetry with linear scan. Detailed record
	Metabolic Causes of Thiodiglycolic Acid Formation and Importance of its Determination Šenholdová-Dlasková, Z. ; Navrátil, Tomáš ; Přistoupil, T. ; Přistoupilová, K. Thiodiglycolic acid (TDGA), is one of the normal products of human metabolism, and occurs at low concentrations in urine. An increased level of TDGA in urine is a sensitive indicator of human organism exposure to some physiologically active or toxic substances, gases and vapors (vinylchloride monomer, etc.). The attention was paid to suggestion and explanation of the metabolic pathways related to thiodiglycolic acid in non-exposed organism. Detailed record
	Electrochemical Behavior of Chosen Chinoxaline-2-on Derivates on the Mercury Electrode Zimpl, M. ; Navrátil, Tomáš ; Kotouček, M. ; Barták, P. ; Zuman, P. The mechanism of the electrochemical behavior of 3-substituated derivates of chinoxaline-2-on on the mercury electrode was studied with the aim to explain the behavior of these drugs in human body. Tast and normal pulse polarography, direct current, cyclic, differential voltammetry, elimination voltammetry with linear scan etc. were applied. Detailed record

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