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Generování hydridů ve spojení s hmotnostní spektrometrií s indukčně vázaným plazmatem
Matoušek, Tomáš
2015 - Czech
Přehledný text popisující využití techniky generování těkavých hydridů v hmotnostní spektrometrii s indukčně vázaným plazmatem. An overview describing technique of volatile hydride generation in connection with inductively coupled plasma mass spectrometry.
Keywords:
hydride generation; ICP-MS
Available in digital repository of the ASCR
Generování hydridů ve spojení s hmotnostní spektrometrií s indukčně vázaným plazmatem
Přehledný text popisující využití techniky generování těkavých hydridů v hmotnostní spektrometrii s indukčně vázaným plazmatem....
Organické sloučeniny v PM1 aerosolu v Ostravě a v Mladé Boleslavi v zimním období
Křůmal, Kamil; Mikuška, Pavel; Večeřa, Zbyněk
2015 - Czech
V této práci byly měřeny organické sloučeniny a markery, které slouží pro identifikaci zdrojů atmosférických aerosolů. Byly analyzovány anhydridy monosacharidů (emise ze spalování biomasy), polyaromatické uhlovodíky (emise z dopravy a nedokonalého spalování), hopany a sterany (doprava, spalování uhlí) a alkany. 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 polyaromatic hydrocarbons (emissions from traffic and incomplete combustion) were observed especially. Hopanes, steranes (traffic, coal combustion) and alkanes were next groups of analysed organic compounds.
Keywords:
atmospheric aerosol; PM1; organic markers
Available in digital repository of the ASCR
Organické sloučeniny v PM1 aerosolu v Ostravě a v Mladé Boleslavi v zimním období
V této práci byly měřeny organické sloučeniny a markery, které slouží pro identifikaci zdrojů atmosférických aerosolů. Byly analyzovány anhydridy monosacharidů (emise ze spalování biomasy), ...
Study of the cell wall of Staphylococcus aureus and its sensitivity to enzybiotics
Čmelík, Richard; Melková, K.; Kobzová, Š.; Janda, L.
2015 - English
The endolysin resistant and sensitive strains of Staphylococcus aureus were compared by means of LC-MS based structural analysis of peptidoglycan isolated from their cell walls. The structural explanation of the resistance was suggested.
Keywords:
peptidoglycan; LC-MS; enzybiotics
Fulltext is available at external website.
Study of the cell wall of Staphylococcus aureus and its sensitivity to enzybiotics
The endolysin resistant and sensitive strains of Staphylococcus aureus were compared by means of LC-MS based structural analysis of peptidoglycan isolated from their cell walls. The structural ...
Simple flow-focusing microfluidic chip for droplet generation
Křivánková, Jana; Basova, E. Y.; Foret, František
2015 - English
There is an ascending requirement for analysis of chemical content of individual cells involving combination of various bioanalytical and optical sensors and arrangements. At the beginning of the cell analysis there is a need for creation of suitable transport vessels - droplets - that can be easily counted, sorted and serve for manipulation of cells with preserved biocompability as well. Among all of bioanalytical approaches droplet-based microfluidics proved its potential for producing droplets with precisely controlled size, shape as well as for encapsulation of reactants and delivering drugs. This study presents a simple microfluidic chip with flow-focusing geometry for generation of water droplets in fluorocarbon oil.
Keywords:
microfluidic chip; droplet generation; fluorinated oil phase
Fulltext is available at external website.
Simple flow-focusing microfluidic chip for droplet generation
There is an ascending requirement for analysis of chemical content of individual cells involving combination of various bioanalytical and optical sensors and arrangements. At the beginning of the cell ...
Efficient generation of arsanes coupled with HPLC or with cryotrapping for speciation analysis of arsenic
Marschner, Karel; Musil, Stanislav; Rychlovský, P.; Dědina, Jiří
2015 - English
Arsenic speciation analysis by HPLC postcolumn hydride generation or with cryotrapping and detection by atomic fluorescence spectrometry.
Keywords:
arsenic speciation analysis; hydride generation; HPLC
Available in digital repository of the ASCR
Efficient generation of arsanes coupled with HPLC or with cryotrapping for speciation analysis of arsenic
Arsenic speciation analysis by HPLC postcolumn hydride generation or with cryotrapping and detection by atomic fluorescence spectrometry.
Organické sloučeniny v PM1 aerosolu v Čelákovicích v zimním období v roce 2015
Křůmal, Kamil; Mikuška, Pavel; Coufalík, Pavel; Večeřa, Zbyněk
2015 - Czech
V této práci byly organické sloučeniny a markery používané pro identifikaci zdrojů aerosolů měřeny v PM1 v malém městě Čelákovice. In this work the organic compounds and organic markers used for the identification of sources of aerosols were measured in PM1 in a small town Celakovice.
Keywords:
PM1; organics markers; atmospheric aerosol
Available in digital repository of the ASCR
Organické sloučeniny v PM1 aerosolu v Čelákovicích v zimním období v roce 2015
V této práci byly organické sloučeniny a markery používané pro identifikaci zdrojů aerosolů měřeny v PM1 v malém městě Čelákovice....
Comparison of ionisation properties of aetma-labeled saccharides with common labels
Partyka, Jan; Foret, František
2015 - English
We have tested (2-aminoethyl)trimethylammonium (AETMA) as a label for analysis of oligosaccharides by capillary electrophoresis with electrospray (ESI) mass spectrometry detection and compared its performance to taurine, 2-aminobenzoic acid, 2-aminobenzamide and 8-aminopyrene-1,3,6-trisulfonic acid. The AETMA-labeled saccharides were provided higher ionization signals in positive mode than native sodium or ammonium adducts and equal or higher signals than saccharides labeled by the more commonly used labels tested in this study.
Keywords:
saccharides; AETMA; ESI/MS
Fulltext is available at external website.
Comparison of ionisation properties of aetma-labeled saccharides with common labels
We have tested (2-aminoethyl)trimethylammonium (AETMA) as a label for analysis of oligosaccharides by capillary electrophoresis with electrospray (ESI) mass spectrometry detection and compared its ...
System for fast analysis of explosives in the enviromnemt
Čapka, Lukáš; Večeřa, Zbyněk; Mikuška, Pavel; Šesták, Jozef; Kahle, Vladislav
2015 - English
Detection of explosives is the subject of many investigations by law enforcement agents and forensic scientist. The identification and discrimination of evidence taken from crime scenes is a common practice in forensic investigations. The higher demands on simple and fast determination of hazard materials or strange objects are required in connection with worldwide often repeated terrorist activities.
Keywords:
explosives; hazard materials; energetic materials; portable device for the analysis
Fulltext is available at external website.
System for fast analysis of explosives in the enviromnemt
Detection of explosives is the subject of many investigations by law enforcement agents and forensic scientist. The identification and discrimination of evidence taken from crime scenes is a common ...
Thiol-ene-based monolithic enzymatic microreactor for glycoprotein deglycosylation
Novotný, Jakub; Lafleur, J. P.; Kutter, J. P.; Foret, František
2015 - English
Enzymatic microreactor was fabricated from thiol-ene polymer. Glycoprotein samples were deglycosylated by enzyme PNGase F which was immobilized on the monolith.
Keywords:
thiol-enes; mictoreactor; monolith
Fulltext is available at external website.
Thiol-ene-based monolithic enzymatic microreactor for glycoprotein deglycosylation
Enzymatic microreactor was fabricated from thiol-ene polymer. Glycoprotein samples were deglycosylated by enzyme PNGase F which was immobilized on the monolith.
Extrakce vybraných sloučenin rtuti z reálných vzorků pro speciační analýzu pomocí RP-HPLC-UV-CVG-QTAAS
Kolorosová, A.; Linhart, O.; Kratzer, Jan; Červený, V.
2015 - Czech
Práce se zabývá extrakcí studovaných specií rtuti (Hg+II, methylrtuť, ethylrtuť a fenylrtuť) z tkání ryb a jejich stanovením pomocí HPLC, UV-fotochemického generování studené páry Hg a AAS s křemennou detekční trubicí (RP-HPLC-UV-CVG-QTAAS). Extraction of selected mercury compounds (Hg+II, methylmercury, ethylmercury and phenylmercury) is studied using fish tissue samples. HPLC is employed for speciation, whereas UV-photochemical cold vapor generation coupled to atomic absorption is used for detection.
Keywords:
speciation analysis; mercury
Available in digital repository of the ASCR
Extrakce vybraných sloučenin rtuti z reálných vzorků pro speciační analýzu pomocí RP-HPLC-UV-CVG-QTAAS
Práce se zabývá extrakcí studovaných specií rtuti (Hg+II, methylrtuť, ethylrtuť a fenylrtuť) z tkání ryb a jejich stanovením pomocí HPLC, UV-fotochemického generování studené páry Hg a AAS s křemennou ...
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