No (151)
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Cryogenic grinding for sample preparation
Pešková, Květa; Krejčová, A.; Pouzar, M.
2007 - Czech
The influence of sample size and duration of sample precooling and grinding, and level of contamination was studied. Byl studován vliv velikosti vzorku a doby chlazení a mletí a úroveň kontaminace.
Keywords:
cryogenic grinding; sample peparation
Available at various institutes of the ASCR
Cryogenic grinding for sample preparation
The influence of sample size and duration of sample precooling and grinding, and level of contamination was studied.
Characterization of metal accessability in soils by investigation of influence of moisture content on response in DGT technique
Mládková, Z.; Dočekalová, H.; Dočekal, Bohumil
2007 - Czech
Metal accessability in soils was studied by investigation of influence of moisture content on response in DGT technique. Byl studován vliv vlhkosti půdy na odezvu DGT pro charakterizaci dostupnosti kovů v půdách.
Keywords:
DGT technique; toxic metals; soils
Available at various institutes of the ASCR
Characterization of metal accessability in soils by investigation of influence of moisture content on response in DGT technique
Metal accessability in soils was studied by investigation of influence of moisture content on response in DGT technique.
Seventy years of activation analysis
Vobecký, Miloslav
2007 - Czech
This review commemorates the main steps of development of radioactivation analysis. Přednáška připomíná hlavní etapy vývoje aktivační analýzy.
Keywords:
neutron activation analysis; instrumental neutron activation analysis
Available at various institutes of the ASCR
Seventy years of activation analysis
This review commemorates the main steps of development of radioactivation analysis.
Application and assessment of sacharide in dairy products
Přibyla, Lubomír; Černý, V.
2006 - Czech
There are two main importance fermentation process in production swiss-type cheese.The first one - fermentation lactose by starter - proceeds during production of cheese curd, the second one - catabolism of lactate by Propionobacterium ssp during cellar. Jsou popsány 2 hlavní významy fermentačního procesu při výrobě sýrů švýcarského typu. První je fermentace mléčného cukru starterem. Zpracovává se během výroby produkcí sýřeniny. Druhý spočívá v katabolismu laktátu Propionobacterium ssp. během dozrávání ve sklepě.
Keywords:
Lactobacillus ssp.; Streptococcus ssp.; Propionibacterium ssp.
Available at various institutes of the ASCR
Application and assessment of sacharide in dairy products
There are two main importance fermentation process in production swiss-type cheese.The first one - fermentation lactose by starter - proceeds during production of cheese curd, the second one - ...
Proteomic identification of posttranslation protein modifications during the malting process
Bobálová, Janette; Chmelík, Josef
2006 - Czech
Identification and investigation of posttranslational changes of nonspecific lipid transfer protein 1, nonspecific lipid transfer protein 2 and protein Z (major endosperm albumin) from barley malt by the proteomic strategy were performed. Proteomickou analýzou extraktu sladu byly identifikovány bílkoviny nespecifický lipid-transfer protein 1, nespecifický lipid-transfer protein 2 a protein Z (major endosperm albumin) a studovány jejich posttranslační modifikace.
Keywords:
proteomics; barley; malting
Available at various institutes of the ASCR
Proteomic identification of posttranslation protein modifications during the malting process
Identification and investigation of posttranslational changes of nonspecific lipid transfer protein 1, nonspecific lipid transfer protein 2 and protein Z (major endosperm albumin) from barley malt by ...
Using of capillary isotachophoresis and on-line capillary zone electrophoresis for the determination of microcomponents in samples with complex matrices
Herrmannová, Michaela; Křivánková, Ludmila; Vytřas, K.
2006 - Czech
Beginning of capillary isotachophoresis is in seventieth years last century. Theory of the isotachophoretic separation process has been elaborated during twentieth years, the instrumentations were developed and considerable number of applications were publicated in articles. ITP-CZE enables in the first step to inject a relatively large sample volume, to separate sample components and to remove undesirable components. In the second step a simplified and defined part of the sample is analysed. Real samples of sweeteners, human serum and urine were analysed. Kapilární izotachoforéza jako analytická technika se začala rozvíjet v sedmdesátých létech minulého století. V následujících dvaceti letech byla propracována teorie izotachoforetického separačního procesu, došlo k vývoji instrumentace a byl též publikován značný počet aplikací v odborných časopisech. ITP-CZE umožňuje v prvním kroku nadávkovat relativně velké množství vzorku, separovat vzorek a odstranit nežádoucí složky vzorku. V druhém kroku je analyzována jednoduchá a definovaná část vzroku. Byly analyzovány reálné vzorky umělých sladidel, lidského séra a moči.
Keywords:
Isotachophoresis; on-line ITP-CZE
Available at various institutes of the ASCR
Using of capillary isotachophoresis and on-line capillary zone electrophoresis for the determination of microcomponents in samples with complex matrices
Beginning of capillary isotachophoresis is in seventieth years last century. Theory of the isotachophoretic separation process has been elaborated during twentieth years, the instrumentations were ...
Short-term instrumental neutron activation analysis by means of training nuclear reactor VR-1 SPARROW
Štaubr, R.; Kolros, A.; Vobecký, Miloslav
2006 - Czech
Described procedure of determination of hafnium is one of the exercises prepared for training of students in neutron activation techniques on Department of Nuclear Reactors at Faculty of Nuclear Science and Physical Engineering Czech Technical University in Prague. Popsaný postup stanovení hafnia je příkladem úloh ke cvičení studentů v technice aktivace neutrony na Katedře jaderných reaktorů Fakulty jaderné a fyzikálně inženýrské ČVUT v Praze.
Keywords:
instrumental neutron activation analysis; short-term irradíation; training nuclear reactor
Available at various institutes of the ASCR
Short-term instrumental neutron activation analysis by means of training nuclear reactor VR-1 SPARROW
Described procedure of determination of hafnium is one of the exercises prepared for training of students in neutron activation techniques on Department of Nuclear Reactors at Faculty of Nuclear ...
Continuous measurement of chemical composition of atmospheric aerosols
Mikuška, Pavel; Večeřa, Zbyněk
2005 - Czech
New continuous collector of atmospheric aerosols using deionized water is described.Collector allows on-line analysis of chemical composition in water soluble aerosol components in real time with time resolution of a few minutes without interferences of gaseous pollutants. Je popsán nový kontinuální kolektor atmosférických aerosolů využitím deionizované vody. Kolektor umožňuje analyzovat on-line chemické složení ve vodě rozpustných aerosolových složek v reálném čase s časovým rozlišením několika minut bez interferencí plynných polutantů.
Keywords:
aerosol collector; nitrate; air
Available at various institutes of the ASCR
Continuous measurement of chemical composition of atmospheric aerosols
New continuous collector of atmospheric aerosols using deionized water is described.Collector allows on-line analysis of chemical composition in water soluble aerosol components in real time with time ...
Identification of volatile contaminants in air and atmospheric aerosol in agricultural enviroment
Hrdlička, Jan; Večeřa, Zbyněk; Mikuška, Pavel; Dočekal, Bohumil; Ciganek, M.
2005 - Czech
We present sampling and analysis of volatile and semi-volatile organic polutants using a cylindrical wet effluent diffusion denuder and atmospheric aerosols on filters in agricultural enviroment Je popsán nový kontinuální kolektor atmosférických aerosolů využitím deionizované vody. Kolektor umožňuje analyzovat on-line chemické složení ve vodě rozpustných aerosolových složek v reálném čase s časovým rozlišením několika minut bez interferencí plynných polutantů.
Keywords:
volatile organic compounds; denuder
Available at various institutes of the ASCR
Identification of volatile contaminants in air and atmospheric aerosol in agricultural enviroment
We present sampling and analysis of volatile and semi-volatile organic polutants using a cylindrical wet effluent diffusion denuder and atmospheric aerosols on filters in agricultural enviroment
Application of difusion denuder for sampling of carbonaceous aerosols and analysis of OC/EC
Mikuška, Pavel; Večeřa, Zbyněk; Bartošíková, Anna; Maenhaut, W.; Chi, X.
2005 - Czech
Annular diffusion denuder for sampling of carbonaceous aerosols on quartz filter without interferences of gaseous organic pollutants and atmospheric oxidants is described. Exposed filters are analysed off-line for content of orgnic and elementar carbon in collected aerosols. Je popsán anulární difusní denuder umožňující vzorkování uhlíkatých aerosolů na křemenný filtr bez interferencí plynných organických polutantů a atmosferických oxidantů.Exponované filtry jsou analyzovány off-line na obsah organického a elementárního uhlíku v zachycených aerosolech.
Keywords:
diffusion denuder; carbonaceous aerosols; sampling artefacts
Available at various institutes of the ASCR
Application of difusion denuder for sampling of carbonaceous aerosols and analysis of OC/EC
Annular diffusion denuder for sampling of carbonaceous aerosols on quartz filter without interferences of gaseous organic pollutants and atmospheric oxidants is described. Exposed filters are analysed ...
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