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Hydride generation in connection with inductively coupled plasma mass spectrometry
Matoušek, Tomáš
2017 - Czech
An overview describing technique of volatile hydride generation in connection with inductively coupled plasma mass spectrometry. Přehledný text popisující využití techniky generování těkavých hydridů v hmotnostní spektrometrií s indukčně vázaným plazmatem.
Keywords:
hydride generation; ICP-MS
Available in digital repository of the ASCR
Hydride generation in connection with inductively coupled plasma mass spectrometry
An overview describing technique of volatile hydride generation in connection with inductively coupled plasma mass spectrometry.
SMV-2017-706: Tests of apparatus for determination of 3H and 14C in air
Večeřa, Zbyněk
2017 - Czech
Testing of ”V3H14C” apparatus designed for 3H and 14C sampling from the air. The samples are captured into sorbents, silica gel for 3H (THO, T2O), and sodium hydroxide for 14C (14CO2) that are subsequently in laboratory analyzed for quantification of radioactive emissions of 3H and 14C from nuclear power plants e.g. Testování a vývoj zařízení řady ”V3H14C”, která jsou určena k odběru vzorků 3H a 14C ze vzduchu. Vzorky se zachycují do sorbentů, sorbentem pro 3H (THO, T2O) je silikagel, sorbentem pro 14C (14CO2) je vodný roztok 3M hydroxidu sodného. Získané vzorky jsou určeny k následné laboratorní analýze. Analýzou zjištěné hodnoty aktivit odebraných vzorků slouží ke stanovení bilance vypouštěného 3H a 14C např. z jaderných zařízení.
Keywords:
testing; air; radioactive emissions
Available at various institutes of the ASCR
SMV-2017-706: Tests of apparatus for determination of 3H and 14C in air
Testing of ”V3H14C” apparatus designed for 3H and 14C sampling from the air. The samples are captured into sorbents, silica gel for 3H (THO, T2O), and sodium hydroxide for 14C (14CO2) that are ...
SMV-2017-732: Preparation, testing and delivery of isoelectric point standards
Čmelík, Richard
2017 - English
The project continues long-term cooperation of both participants. The low-molecular mass pI markers were synthesized and examined with aim to fill up and deliver the previously described compounds.
Keywords:
Isoelectric focusing; pI markers; aminomethylphenols
Available on request at various institutes of the ASCR
SMV-2017-732: Preparation, testing and delivery of isoelectric point standards
The project continues long-term cooperation of both participants. The low-molecular mass pI markers were synthesized and examined with aim to fill up and deliver the previously described compounds.
SMV-2017-742: Testování možností separace krátkých oligonukleotidů ze vzorku dodaného f. BioVendor, a.s.
Foret, František
2017 - Czech
Available at various institutes of the ASCR
SMV-2017-742: Testování možností separace krátkých oligonukleotidů ze vzorku dodaného f. BioVendor, a.s.
Determination of levoglucosan and dehydroabietic acid in urban aerosol
Coufalík, Pavel; Čmelík, Richard; Křůmal, Kamil; Čapka, Lukáš; Mikuška, Pavel
2017 - Czech
The analytical method involving aerosol sampling into water, quantitative pre-concentration of levoglucosan and dehydroabietic acid, and their determination by LC-MS was developed in this work. Cílem této práce byl vývoj analytické metody pro stanovení levoglukosanu a dehydroabietové kyseliny v aerosolu pomocí LC-MS s využitím přímého vzorkování aerosolu do vody.
Keywords:
CGU-ACTJU sampler; levoglucosan; dehydroabietic acid
Available at various institutes of the ASCR
Determination of levoglucosan and dehydroabietic acid in urban aerosol
The analytical method involving aerosol sampling into water, quantitative pre-concentration of levoglucosan and dehydroabietic acid, and their determination by LC-MS was developed in this work.
Determination of Inorganic Arsenic in Samples of Marine Origin
Marschner, Karel; Matoušek, Tomáš; Dědina, Jiří; Musil, Stanislav
2017 - English
A fast screening method for determination of inorganic arsenic in marine samples was developed. This method is based on selective\nhydride generationanddetectionby inductively coupled plasmamass spectrometry. Using a high concentration of hydrochloric acid\ntogether with hydrogen peroxide for hydride generation leads to selective conversion of inorganic arsenic species into arsane. The\naccuracy of this method was verified by comparative analyse by high performance liquid chromatography coupled with hydride generationandatomic\nfluorescence detection.
Keywords:
arsenic speciation; inorganic arsenic; hydride generation
Available on request at various institutes of the ASCR
Determination of Inorganic Arsenic in Samples of Marine Origin
A fast screening method for determination of inorganic arsenic in marine samples was developed. This method is based on selective\nhydride generationanddetectionby inductively coupled plasmamass ...
Fate of smelter dusts in temperate and semi-arid soils
Ettler, V.; Jarošíková, A.; Mihaljevič, M.; Kříbek, B.; Veselovský, F.; Penížek, V.; Vaněk, A.; Šráček, O.; Matoušek, Tomáš; Mapani, B.; Kamona, F.; Nyambe, I.
2017 - English
Our results indicate that, compared to semi-arid areas (where inorganic contaminants are rather immobile in soils despite their high concentrations), a higher potential risk exists in smelter-affected humid areas, where metal(loid) contaminants can be easily released by extensive weathering of particulates in the soil systems.
Keywords:
soils; smelter dusts
Available in digital repository of the ASCR
Fate of smelter dusts in temperate and semi-arid soils
Our results indicate that, compared to semi-arid areas (where inorganic contaminants are rather immobile in soils despite their high concentrations), a higher potential risk exists in smelter-affected ...
Determination of inorganic anions in air by modernized aerosol sampler
Čapka, Lukáš; Mikuška, Pavel; Večeřa, Zbyněk
2017 - Czech
Combination of original ACTJU sampler with water-based condensation growth unit (CGU) located upstream of the ACTJU allows quantitative sampling of aerosol particles down to a few nm in diameter. The ACTJU effluent is permanently sucked out from the sampler and online analysed for particulate water-soluble species by ion chromatography. Spojení původního vzorkovače ACTJU s kondenzační růstovou jednotkou na bázi vody (CGU), umístěné před ACTJU, umožnilo vzorkovat částice aerosolu o rozměrech v řádech nanometrů. Odtah z ACTJU je kontinuálně odsáván a v něm obsažené vodou rozpustné sloučeniny online analyzovány pomocí iontové chromatografie.
Keywords:
CGU-ACTJU sampler; on-line analysis; atmospheric aerosol
Available at various institutes of the ASCR
Determination of inorganic anions in air by modernized aerosol sampler
Combination of original ACTJU sampler with water-based condensation growth unit (CGU) located upstream of the ACTJU allows quantitative sampling of aerosol particles down to a few nm in diameter. The ...
Characterization of organic compounds in PM1aerosol in Kosetice and Brno in winter season 2017
Křůmal, Kamil; Mikuška, Pavel; Večeřa, Zbyněk
2017 - Czech
In this work, the organic compounds and organic markers used for the identification of sources of aerosols were measured. Monosaccharide anhydrides and resin acids (emissions from biomass combustion) and polycyclic aromatic hydrocarbons (emissions from traffic and incomplete combustion) were observed especially. Hopanes, steranes (traffic, coal combustion) and alkanes were next groups of analysed organic compounds. V této práci byly měřeny organické sloučeniny a markery, které slouží pro identifikaci zdrojů atmosférických aerosolů. Byly analyzovány anhydridy monosacharidů (emise ze spalování biomasy), polycyklické aromatické uhlovodíky (emise z dopravy a nedokonalého spalování), hopany a sterany (doprava, spalování uhlí) a alkany.
Keywords:
atmospheric aerosol; PM1; organic markers
Available at various institutes of the ASCR
Characterization of organic compounds in PM1aerosol in Kosetice and Brno in winter season 2017
In this work, the organic compounds and organic markers used for the identification of sources of aerosols were measured. Monosaccharide anhydrides and resin acids (emissions from biomass combustion) ...
Characterization of upconversion nanoparticles by fluorescence spectrometry and capillary electrophoresis
Vaněčková, T.; Zítka, J.; Hlaváček, Antonín; Adam, V.; Vaculovičová, M.
2017 - English
Upconversion nanoparticles (UCNPs) are a novel class of luminescent tags for applications in life and material sciences. Unlike traditional fluorophores, UCNPs exhibit emission of shorter wavelength under near-infrared excitation (typically 980 nm). In this work, we have examined these unique photophysical properties by fluorescence spectrometry and capillary electrophoresis. UCNPs co-doped with Yb(III) and Er(III) were characterized using laboratory-made fluorescence spectrometer. We have exploited and evaluated two excitation sources and the dependence of the fluorescence of UCNPs on the relative excitation power. Moreover, capillary electrophoresis with laser-induced fluorescence (CE-LIF) detection was for the first time used for characterization of the nanoparticles. It was proved that CE-LIF is a valuable method to be used for investigation of upconversion luminiscence and monitoring of the interactions of UCNPs with other molecules of interest.
Keywords:
capillary electrophoresis; fluorescence spectrometry; upconversion nanoparticles
Fulltext is available at external website.
Characterization of upconversion nanoparticles by fluorescence spectrometry and capillary electrophoresis
Upconversion nanoparticles (UCNPs) are a novel class of luminescent tags for applications in life and material sciences. Unlike traditional fluorophores, UCNPs exhibit emission of shorter wavelength ...
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