Fragmentation in electron ionization according to function groups in the molecule
Čáslavský, Josef
2005 - Czech
Keywords:
fragmentation; electron ionization; function group
Available at various institutes of the ASCR
Fragmentation in electron ionization according to function groups in the molecule
Passive sampling of organic pollutants in the environment
Čáslavský, Josef; Kotlaříková, Pavla
2005 - Czech
Methods of passive sampling of persistant organic pollutants in the environment are reviewed, as well as the most often used types of passive sampler: devices for solid phase microextraction (SPME), stir bar sorptive extraction (SBSE), polymer-coated glass (POG), polyurethan air sampler (PUF), passive air sampler with sorbent, ceramic dosimeter, and semipermeable membrane devices (SPMDs). Práce je přehledem metod pasivního vzorkování persistentních organických polutantů v životním prostředí a nejčastěji používaných typů pasivních vzorkovačů: zařízení pro mikroextrakci tuhou fází (SPME), sorpce/extrakce na míchadlo (SBSE), vzorkovače ovzduší typu POG, vzorkovače ovzduší s polyuretanem (PUF sampler), pasivní vzorkovač ovzduší se sorbentem, keramický dozimetr a vzorkovače s polopropustnou menbránou (SPMDs).
Keywords:
passive sampling; organic pollutants; environment
Available at various institutes of the ASCR
Passive sampling of organic pollutants in the environment
Methods of passive sampling of persistant organic pollutants in the environment are reviewed, as well as the most often used types of passive sampler: devices for solid phase microextraction (SPME), ...
Supercritical fluid chromatography
Planeta, Josef
2005 - Czech
The principle of supecritical fluid chromatography, current state and instrumentation possibilities, hyphenation with MS or MALDI-TOF are described. The examples of separation are presented, and the possibility of using SFC for obtaining physico-chemical data are discussed. Je popsán princip superkritické fluidní chromatografie, současný stav a možnosti instrumentace, spojení s MS nebo MALDI-TOF, uvedeny příklady separací a diskutována možnost použití SFC k získání fyzikálně chemických dat.
Keywords:
supercritical fluid chromatography; SFC
Available at various institutes of the ASCR
Supercritical fluid chromatography
The principle of supecritical fluid chromatography, current state and instrumentation possibilities, hyphenation with MS or MALDI-TOF are described. The examples of separation are presented, and the ...
Optimization of sample injection in capillary electrochromatography
Kahle, Vladislav; Košťál, Vratislav; Zeisbergerová, Marta
2005 - Czech
The sample injection is an important part of the electrochromatographic (CEC) analysis.. This work focuses on injection optimization with use of the splitter working in the heart-cut regime. Mechanisms of spontaneous and electrokinetic injection were studied. Good repeateability of peak heights, peak areas and retention times was reached for standard, gradient and preconcentration CEC separations. Dávkování vzorku je důležitým krokem v elektrochromatografické (CEC) analýze. Tato práce je zaměřena na optimalizaci dávkování s využitím splitru pracujícího v „heart-cut“ režimu. Byly studovány mechanismy spontánního a elektrokinetického dávkování. Byly dosaženy dobré hodnoty opakovatelnosti výšek a ploch píků a retenčních časů pro CEC separace za standardních, gradientových a předkoncentračních podmínek.
Keywords:
sample injection; heart-cut
Available at various institutes of the ASCR
Optimization of sample injection in capillary electrochromatography
The sample injection is an important part of the electrochromatographic (CEC) analysis.. This work focuses on injection optimization with use of the splitter working in the heart-cut regime. ...
The study of influence of atmospheric pollutants on the determination of nitrous acid with the preconcentration in the cylindrical wet diffusion denuder
Motyka, Kamil; Večeřa, Zbyněk; Mikuška, Pavel
2005 - Czech
The effect of pollutants which commonly occur in polluted air on the chemiluminescent determination of nitrous acid with preconcentration in cylindrical wet diffusion denuder was investigated. V této práci byl zkoumán vliv polutantů, které se obvykle nacházejí ve znečištěném vzduchu, na chemiluminiscenční stanovení kyseliny dusité s prekoncentrací v cylindrickém difúzním denuderu se stékajícím filmem kapaliny
Keywords:
nitrous acid; denuder; chemiluminescence
Available at various institutes of the ASCR
The study of influence of atmospheric pollutants on the determination of nitrous acid with the preconcentration in the cylindrical wet diffusion denuder
The effect of pollutants which commonly occur in polluted air on the chemiluminescent determination of nitrous acid with preconcentration in cylindrical wet diffusion denuder was investigated.
Miniaturization in separation techniques and mass spectrometry interface
Klepárník, Karel
2005 - Czech
Keywords:
miniaturization; separation techniques interface; mass spectrometry interface
Available at various institutes of the ASCR
Miniaturization in separation techniques and mass spectrometry interface
Linear ion trap
Čáslavský, Josef
2005 - Czech
Keywords:
linear ion trap; MS
Available at various institutes of the ASCR
Linear ion trap
Instrumental development HPLC/MS since beginning till today
Čáslavský, Josef
2005 - Czech
Keywords:
HPLC/MS; interface LC/MS
Available at various institutes of the ASCR
Instrumental development HPLC/MS since beginning till today
Electromigration techniques and mass spectrometry interface
Klepárník, Karel
2005 - Czech
Keywords:
electromigration techniques; mass spectrometry interface
Available at various institutes of the ASCR
Electromigration techniques and mass spectrometry interface
Selenium in prehistorical skeletal sets from Bohemia
Smrčka, V.; Korunová, Vlasta; Dobisíková, M.; Zocová, J.
2005 - Czech
Selenium is one of the elements which can be used to study human diet at various historical periods. Since meat is the source of selenium (and zinc), selenium content in bodies is directly linked to amount of proteins in diet. Selenium content was used to study cultures of Eneolithic and Bronze Age. Selen může být použit ke studiu lidské diety během různých historických období. Maso je zdrojem selenu (a zinku) a jeho obsah v těle je v přímém vztahu k množství proteinů ve stravě. Obsah selenu byl použit k porovnání dietních zvyklostí v dobách kultur eneolitu a doby bronzové.
Keywords:
Selenium; zinc; strontium
Available at various institutes of the ASCR
Selenium in prehistorical skeletal sets from Bohemia
Selenium is one of the elements which can be used to study human diet at various historical periods. Since meat is the source of selenium (and zinc), selenium content in bodies is directly linked to ...
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