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Yes (43)
Number of found documents:
211
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Determination of heavy metals in solid energetic waste
Kořínková, Alena; Doležalová Weissmannová, H.
2011 - Czech
Determination of heavy metals (Pb, Cu and Cd) in solid energetic waste (loge ash, ash, scoria) was performed according to Tessier. Extraction proceeded at temperatures of 25°C and 40°C and metals were determined using atomic absorption spectrometer (F AAS and ET AAS). Stanovení těžkých kovů (Pb, Cu a Cd) v pevných energetických odpadech (popílek, popel, škvára) pomocí Tessierovy extrakce na atomovém absorpčním spektrometru. Extrakce probíhaly při teplotách 25°C a 40°C.
Keywords:
Tessier´s extraction; AAS; metals
Available at various institutes of the ASCR
Determination of heavy metals in solid energetic waste
Determination of heavy metals (Pb, Cu and Cd) in solid energetic waste (loge ash, ash, scoria) was performed according to Tessier. Extraction proceeded at temperatures of 25°C and 40°C and metals were ...
Analysis of metals and ions in atmospheric aerosol in Brno and Šlapanice
Mikuška, Pavel; Křůmal, Kamil; Vojtěšek, Martin; Večeřa, Zbyněk
2011 - Czech
Analysis of metals and ions in aerosol PM1 and comparison of concentrations during winter and summer campaigns in Brno and Šlapanice in 2009, identification of main emission sources. Analýza kovů a iontů v aerosolu PM1 a porovnání koncentrací v průběhu zimní a letní kampaně v Brně a Šlapanicích v roce 2009, identifikace hlavních emisních zdrojů.
Keywords:
metals; ions; emission sources
Available at various institutes of the ASCR
Analysis of metals and ions in atmospheric aerosol in Brno and Šlapanice
Analysis of metals and ions in aerosol PM1 and comparison of concentrations during winter and summer campaigns in Brno and Šlapanice in 2009, identification of main emission sources.
Methodology for identification of sources of aerosol particles and street dust using statistical methods
Adamec, V.; Huzlík, J.; Ličbinský, R.; Mikuška, Pavel; Vojtěšek, Martin
2010 - Czech
Methodology describes a process of quantification of contribution of individual resources of air pollution caused by the particulate matter including resuspension on the basis of measurement of chemical composition of particulate matter and street dust using statistical methods and receptor modeling. Metodika popisuje postup pro kvantifikaci podílů jednotlivých zdrojů na znečištění ovzduší pevnými částicemi vč. resuspenze na základě měření chemického složení pevných částic a pouličního prachu s využitím statistických metod a receptorového modelování.
Keywords:
pollution sources; particulate matter; receptor modeling
Available in digital repository of the ASCR
Methodology for identification of sources of aerosol particles and street dust using statistical methods
Methodology describes a process of quantification of contribution of individual resources of air pollution caused by the particulate matter including resuspension on the basis of measurement of ...
How are observed spontaneous fission
Vobecký, Miloslav
2010 - Czech
A brief contribution commemorates the discovery of one of the modes (types) of radioactive transformation (decay) of atomic nuclei. Krátké sdělení připomínající objev jednoho druhu (typu) radioaktivní přeměny (rozpadu) atomových jader.
Keywords:
spontaneous fission; fission-track dating method; californium 252 neutron source
Available at various institutes of the ASCR
How are observed spontaneous fission
A brief contribution commemorates the discovery of one of the modes (types) of radioactive transformation (decay) of atomic nuclei.
Polyaromatic hydrocarbons, hopanes and steranes in PM1 in Brno and Šlapanice
Křůmal, Kamil; Mikuška, Pavel; Vojtěšek, Martin; Večeřa, Zbyněk
2010 - Czech
Contribution deals with comparison of concentrations of polyaromatic hydrocarbons, hopanes and steranes in Brno and Šlapanice at two seasons (winter and summer) and identification of emission sources of aerosols in these locations. V příspěvku jsou srovnávány hmotnostní koncentrace polyaromatických uhlovodíků, hopanů a steranů v Brně a Šlapanicích ve dvou ročních obdobích (zima a léto). Dále se příspěvek zabývá identifikací emisních zdrojů aerosolů na těchto dvou lokalitách.
Keywords:
polyaromatic hydrocarbons; hopanes; markers
Available at various institutes of the ASCR
Polyaromatic hydrocarbons, hopanes and steranes in PM1 in Brno and Šlapanice
Contribution deals with comparison of concentrations of polyaromatic hydrocarbons, hopanes and steranes in Brno and Šlapanice at two seasons (winter and summer) and identification of emission sources ...
Seasonal variations of concentrations of metals in particulate matter and street dust in Brno and Ostrava
Vojtěšek, Martin; Mikuška, Pavel; Ličbinský, R.; Adamec, V.; Křůmal, Kamil
2010 - Czech
In this work a study of chemical composition of PM10, PM2.5 and street dust was performed at two urban sites in the Czech Republic in years 2009 and 2010. The first one is in the city center with high traffic density and the second is situated near steelworks. V této práci byla provedena studie chemického složení PM10, PM2.5 a pouličního prachu na dvou městských lokalitách v České republice v letech 2009 a 2010. První z nich je v centru města s vyšší dopravní zátěží a druhá je situována nedaleko ocelárny
Keywords:
PM; street dust; urban
Available at various institutes of the ASCR
Seasonal variations of concentrations of metals in particulate matter and street dust in Brno and Ostrava
In this work a study of chemical composition of PM10, PM2.5 and street dust was performed at two urban sites in the Czech Republic in years 2009 and 2010. The first one is in the city center with high ...
Analysis of water-soluble fraction of metals in atmospheric aerosols using a semi-continuous system
Mikuška, Pavel; Vojtěšek, Martin; Večeřa, Zbyněk; Křůmal, Kamil
2010 - Czech
Description of semi-continuous system for on-line detection of water-soluble fraction of metalls in atmospheric aerosols with time resolution of 30 min. Fe3+, Co2+, Cu2+ were selected as model metals. Popis semi-kontinuálního systému pro on-line detekci ve vodě rozpustné frakce kovů v atmosférickém aerosolu s časovým rozlišením 30 min. Jako modelové kovy byly zvoleny Fe3+, Co2+, Cu2+.
Keywords:
atmospheric aerosol; water soluble metals; aerosol sources
Available at various institutes of the ASCR
Analysis of water-soluble fraction of metals in atmospheric aerosols using a semi-continuous system
Description of semi-continuous system for on-line detection of water-soluble fraction of metalls in atmospheric aerosols with time resolution of 30 min. Fe3+, Co2+, Cu2+ were selected as model ...
Determination of peroxyacetylnitrate in air using a chemiluminescence aerosol detector
Mikuška, Pavel; Bružeňák, L.
2009 - Czech
Chemiluminescent method of peroxyacetylnitrate detection in air using a CLAD and separation of interfering compounds (NO2, O3) provides fast, sensitive and specific determination of PAN with detection limit of 10 ppt and time resolution of 3 min. Chemiluminiscenční metoda detekce peroxyacetylnitrátu ve vzduchu použitím CLAD a separace interferujících polutantů (NO2, O3) umožňuje rychlé, citlivé a specifické stanovení PAN ve vzduchu s limitem detekce 10 ppt a časovým rozlišením 3 min.
Keywords:
peroxyacetylnitrate; chemiluminescent detection
Available at various institutes of the ASCR
Determination of peroxyacetylnitrate in air using a chemiluminescence aerosol detector
Chemiluminescent method of peroxyacetylnitrate detection in air using a CLAD and separation of interfering compounds (NO2, O3) provides fast, sensitive and specific determination of PAN with detection ...
Analysis of molecular markers from biomass combustion
Křůmal, Kamil; Mikuška, Pavel; Vojtěšek, Martin; Večeřa, Zbyněk
2009 - Czech
This work compare PM1 and PM2,5 concentrations of levoglucosan, mannosan and galactosan in Brno (370 000 inhabitants) and Šlapanice (6 000 inhabitants) in winter and summer months. These compounds were analyzed by GCMS. V této práci jsou srovnávány koncentrace levoglukosanu, mannosanu a galaktosanu v aerosolové frakci PM1 a PM2,5 v Brně (370 000 obyvatel) a Šlapanicích (6 000 obyvatel) v zimních a letních měsících. Tyto tři sloučeniny byly analyzovány metodou GCMS.
Keywords:
marker; PM2.5; PM1; biomass combustion
Available at various institutes of the ASCR
Analysis of molecular markers from biomass combustion
This work compare PM1 and PM2,5 concentrations of levoglucosan, mannosan and galactosan in Brno (370 000 inhabitants) and Šlapanice (6 000 inhabitants) in winter and summer months. These compounds ...
Surface enhanced Raman spectroscopy
Maděránková, D.; Provazník, I.; Klepárník, Karel
2009 - Czech
The signal of Raman scattering in carotene solutions, enhanced on silver colloid particles was studied. The dependence of the enhancement factor on the concentration of silver particles demonstrates the potential of the method for biological applications. Byl studován signál Ramanova rozptylu v roztocích karotenu, zesílený na koloidních částicích stříbra. Závislost faktoru zesílení na koncentraci stříbrných částic ukazuje potenciál této metody pro biologické aplikace.
Keywords:
surface enhanced Raman scattering; SERS; silver colloids
Available at various institutes of the ASCR
Surface enhanced Raman spectroscopy
The signal of Raman scattering in carotene solutions, enhanced on silver colloid particles was studied. The dependence of the enhancement factor on the concentration of silver particles demonstrates ...
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