Zobrazeno 1 - 10
of 312
pro vyhledávání: '"R. Wennrich"'
Publikováno v:
Biogeosciences, Vol 9, Iss 1, Pp 493-507 (2012)
An automated biogeochemical microcosm system allowing controlled variation of redox potential (EH) in soil suspensions was used to assess the effect of various factors on the mobility of mercury (Hg) as well as on the methylation of Hg in two contami
Externí odkaz:
https://doaj.org/article/cdcaae8ed32a461a9f00f4f3ac49d741
Publikováno v:
Sensors, Vol 5, Iss 6, Pp 411-423 (2005)
DNA biosensor can serve as a powerfull tool for simple in vitro tests of chemicaltoxicity. In this paper, damage to DNA attached to the surface of screen-printed carbonelectrode by arsenic compounds in solution is described. Using the Co(III) complex
Externí odkaz:
https://doaj.org/article/d60b110a3fd84786a7a1c1afa5179b75
Autor:
R. Wennrich, J. Mattusch, E. BrandÅ¡teterová, A. Čaniová-Žiaková, L. Heilerová, M. BuÄÂková, J. Labuda
Publikováno v:
Sensors, Vol 2, Iss 1, Pp 1-10 (2002)
A simple procedure for the voltammetric detection of antioxidative activity of plant extracts based on the protection from DNA damage at the electrode surface is reported. A disposable electrochemical DNA biosensor fabricated as a carbon-based screen
Externí odkaz:
https://doaj.org/article/e9417df94bde4306869a5ff5a0d527fb
Publikováno v:
Engineering in Life Sciences. 8:582-588
An analytical scheme was developed for the separation and detection of organoarsenicals using a zwitterionic stationary phase of hydrophilic interaction chromatography (ZIC®-HILIC) coupled in parallel to electrospray ionization mass spectrometry (ES
Publikováno v:
Journal of Chromatography A. 968:171-176
The suitability of using metal-loaded sorbents for solid-phase extraction to enrich organic sulfur compounds from water samples was studied. To test the retention behavior of a number of sulfides, thiols and methylthiophosphates, a cation-exchanger w
Publikováno v:
Applied Microbiology and Biotechnology. 54:854-857
The efficiency of surfactant application to improve or inhibit metal solubilization and sulfur oxidation kinetics during the bioleaching of heavy metal-contaminated sediments was studied in suspension-leaching experiments. The river sediment used con
Publikováno v:
Electroanalysis. 11:101-107
Binding reactions of copper(II) complexes of 1,10-phenanthroline (phen) and tetraaza macrocyclic ligand TAAB with calf thymus DNA have been investigated voltammetrically at bare and DNA modified glassy carbon electrodes. The values of binding constan
Publikováno v:
Analytical and Bioanalytical Chemistry. 354:535-539
High-performance capillary electrophoresis is applied to the separation of different inorganic and organic arsenic and selenium compounds. In comparison with UV-detection, an approach with conductivity detection is described expecting higher sensitiv
Publikováno v:
Spectrochimica Acta Part B: Atomic Spectroscopy. 50:1655-1667
Different approaches for the simultaneous determination of arsenic, antimony, bismuth, selenium and tellurium by furnace atomic nonthermal excitation spectrometry (FANES) are described. In the direct analysis of microvolumes of solutions, the results
Publikováno v:
Fresenius' Journal of Analytical Chemistry. 352:461-469
The determination of iodine, bromine, sulphur and phosphorus using different modes of sampling in ICP-AES is described. Detection limits in the range of some 10 μgL−1 have been obtained using directly aqueous solutions with pneumatic nebulization.