No (118)
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118
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Gold chemical vapor generation by tetrahydroborate reduction for AAS: Radiotracer efficiency study and characterization of gold species
Musil, Stanislav; Arslan, Y.; Kratzer, Jan; Vobecký, Miloslav; Benada, Oldřich; Matoušek, Tomáš; Rychlovský, P.; Ataman, O. Y.; Dědina, Jiří
2010 - English
The main objective was to assess the generation efficiency in the optimized method of chemical vapor generation of gold by means of 198,199Au radioindicator. We also intended to characterize the volatile Au species formed by tetrahydroborate reduction.
Keywords:
chemical vapor generation; Au radioindicator; TEM
Available at various institutes of the ASCR
Gold chemical vapor generation by tetrahydroborate reduction for AAS: Radiotracer efficiency study and characterization of gold species
The main objective was to assess the generation efficiency in the optimized method of chemical vapor generation of gold by means of 198,199Au radioindicator. We also intended to characterize the ...
Characterization of grape skins´ ethanolic extracts
Šťavíková, L.; Polovka, M.; Hohnová, Barbora; Zemanová, J.
2009 - English
Multiexperimental characterization (EPR, UV/VIS) of ethanolic extract prepared by PFE from Alibernet and St. Laurent grape skins.
Keywords:
PFE; EPR; anthocyanins
Available at various institutes of the ASCR
Characterization of grape skins´ ethanolic extracts
Multiexperimental characterization (EPR, UV/VIS) of ethanolic extract prepared by PFE from Alibernet and St. Laurent grape skins.
Investigation of cryogenic trapping for arsenic speciation analysis by hydride generation – atomic absorption spectrometry
Svoboda, Milan; Kratzer, Jan; Vobecký, Miloslav; Rychlovský, P.; Dědina, Jiří
2009 - English
The general aim of this work was to contribute to further improvement of the method for complete speciation analysis of trivalent and pentavalent human metabolites of arsenic in complex biological matrices. The main target of this work was to investigate processes during the cryotrapping procedure and find optimum conditions. Cílem této práce je přispět k dalšímu vývoji metody na speciaci arsenu v biologických matricích. Hlavním cílem je výzkum procesů během záchytu arsenu eventuelně nalézt možnost miniaturizace zařízení kryogenní pasti
Keywords:
arsenic speciation; atomic absorption spectrometry; cryogenic trapping
Available at various institutes of the ASCR
Investigation of cryogenic trapping for arsenic speciation analysis by hydride generation – atomic absorption spectrometry
The general aim of this work was to contribute to further improvement of the method for complete speciation analysis of trivalent and pentavalent human metabolites of arsenic in complex biological ...
Comprehensive and targeted proteomic analysis of red yeast Rhodotorula glutinis cultivated under normal and stressed condition
Hezinová, Věra; Svobodová, Ivona; Čarnecká, M.; Halienová, A.; Klepárník, Karel; Márová, I.
2009 - English
The differences in proteomic profile of red yeast Rhodotorula glutinis cultivated under normal and stress condition were studied using two approaches; comprehensive and targeted. In targeted approach semiconductor quantum dots were used for protein visualization.
Keywords:
red yeast; quantum dots; stress
Available at various institutes of the ASCR
Comprehensive and targeted proteomic analysis of red yeast Rhodotorula glutinis cultivated under normal and stressed condition
The differences in proteomic profile of red yeast Rhodotorula glutinis cultivated under normal and stress condition were studied using two approaches; comprehensive and targeted. In targeted approach ...
CdTe quantum dots - preparation, physico-chemical properties and application as fluorescent markers
Hezinová, Věra; Svobodová, Ivona; Lišková, Marcela; Přikryl, Jan; Klepárník, Karel; Foret, František
2009 - English
The set of different sizes of CdTe nanoparticles coated with MPA was synthetized and characterized by fluorescence spectra and lifetimes. Their application as a cell fluorescent markers was tested. Byla připravena sada CdTe kvantových teček o různých velikostech a charakterizována pomocí fluorescenčních spekter a doby života fluorescence. Byla testována možnost použití kvantových teček pro fluorescenční značení buněk.
Keywords:
quantum dots; fluorescent probes; semiconductor nanoparticles
Available at various institutes of the ASCR
CdTe quantum dots - preparation, physico-chemical properties and application as fluorescent markers
The set of different sizes of CdTe nanoparticles coated with MPA was synthetized and characterized by fluorescence spectra and lifetimes. Their application as a cell fluorescent markers was ...
Preparation, physical-chemical properties and utilization of nanoparticles in bioanalysis
Svobodová, Ivona; Hezinová, Věra; Lišková, Marcela; Přikryl, Jan; Maděránková, D.; Klepárník, Karel; Foret, František
2009 - English
The possibilities of application of nanoparticles in bioanalysis were studied. Applications of quantum dots as a fluorescent markers, silver nanoparticles in SERS and conjucation of gold nanoparticles with antibodies were shown.
Keywords:
bioanalysis; fluorescent probes; nanoparticles
Available at various institutes of the ASCR
Preparation, physical-chemical properties and utilization of nanoparticles in bioanalysis
The possibilities of application of nanoparticles in bioanalysis were studied. Applications of quantum dots as a fluorescent markers, silver nanoparticles in SERS and conjucation of gold nanoparticles ...
Potential of quantum dots for single molecule detection in cell membranes and organelles
Přikryl, Jan; Klepárník, Karel; Svobodová, Ivona; Hezinová, Věra; Lišková, Marcela; Preisler, J.; Foret, František
2009 - English
This contribution is devoted to quantum dots usage for cell imaging in fluorescence microscopy. Fluorescence excitation by evanescence wave (caused by total internal reflection) is compared with conventional epifluorescence microscopy. Příspěvek je věnován využití kvantových teček pro značení buněk ve fluorescenční mikroskopii. Zejména je srovnána excitace fluorescence evanescentní vlnou (vznikající při totálním interním odrazu) s konvenčním epifluorescenčním uspořádáním.
Keywords:
quantum dots; luminescence; fluorescence
Available at various institutes of the ASCR
Potential of quantum dots for single molecule detection in cell membranes and organelles
This contribution is devoted to quantum dots usage for cell imaging in fluorescence microscopy. Fluorescence excitation by evanescence wave (caused by total internal reflection) is compared with ...
Extraction and determination of flavonoids in Stevia rebaudiana leaves by pressurized solvent and HPLC
Hohnová, Barbora; Omelková, J.; Vespalcová, M.; Karásek, Pavel
2009 - English
Determination of selected flavonoids in Stevia rebaudiana leaves by HPLC. Comparison of extraction techniques, PFE, soxhlet extraction and ultrasound assisted extraction.
Keywords:
PFE; HPLC; flavonoids
Available at various institutes of the ASCR
Extraction and determination of flavonoids in Stevia rebaudiana leaves by pressurized solvent and HPLC
Determination of selected flavonoids in Stevia rebaudiana leaves by HPLC. Comparison of extraction techniques, PFE, soxhlet extraction and ultrasound assisted extraction.
Characterization of a new 8-hydroxyquinoline modifed resin gel for DGT technique
Gregušová, Michaela; Dočekal, Bohumil
2009 - English
This study deals with a new resin gel based on Spheron-Oxin® ion exchanger with anchored specific groups of 8-hydroxyquinoline for DGT technique. The performance of this new binding phase was tested for determination of Cd, Cu, Ni, Pb and U under laboratory conditions. The new binding phase with a higher selectivity to race metal species than Chelex 100 could potentially provide more information on metals speciation in aquatic systems.
Keywords:
DGT technique; 8-hydroxychinoline; uranium
Available at various institutes of the ASCR
Characterization of a new 8-hydroxyquinoline modifed resin gel for DGT technique
This study deals with a new resin gel based on Spheron-Oxin® ion exchanger with anchored specific groups of 8-hydroxyquinoline for DGT technique. The performance of this new binding phase was tested ...
Chemical vapour generation of silver for atomic absorption spectrometry: .sup.111./sup.Ag radiotracer study of transport efficiency and in-situ trapping on quartz surface
Musil, Stanislav; Kratzer, Jan; Vobecký, Miloslav; Matoušek, Tomáš
2009 - English
The method of chemical vapour generation of silver by means of sodium tetrahydroborate was futher developed in order to minimize transport losses. The possibility of collection of volatile silver species directly in the atomizer is presented. Metoda generování těkavých forem stříbra pomocí reakce s roztokem tetrahydroborátu byla dále vyvinuta za účelem snížení transportních ztrát. Je prezentována možnost provedení kolekce stříbra přímo v křemenném atomizátoru.
Keywords:
chemical vapour generation; transport efficiency; in-situ trapping
Available at various institutes of the ASCR
Chemical vapour generation of silver for atomic absorption spectrometry: .sup.111./sup.Ag radiotracer study of transport efficiency and in-situ trapping on quartz surface
The method of chemical vapour generation of silver by means of sodium tetrahydroborate was futher developed in order to minimize transport losses. The possibility of collection of volatile silver ...
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