National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Speciation analysis of arsenic based on volatile species generation and dielectric barrier discharge plasma atomization
Plecháč, Matěj ; Kratzer, Jan (advisor) ; Kaňa, Antonín (referee)
SPECIATION ANALYSIS OF ARSENIC BASED ON VOLATILE SPECIES GENERATION AND DIELECTRIC BARRIER DISCHARGE PLASMA ATOMIZATION Bc. Matěj Plecháč 2024 Abstract Volatile species generation (VSG) comprises a group of techniques based on analyte derivatization in order to form a volatile compound prior to spectrometric detection. Selective analyte conversion from liquid to gas phase results in enhanced analyte introduction efficiency, but also in matrix separation and reduced risk of interferences. Moreover, VSG step can be utilized during speciation analysis or analyte preconcentration. The most frequent atomizers of volatile species are externally heated quartz tubes (QTA). Dielectric barrier discharge (DBD) atomizers have proved to be alternative hydride atomizers to QTA. The significant difference in toxicity of various species of the same element leads to the urgent need to develop new strategies for speciation analysis. Various approaches to speciation analysis of toxicologically relevant arsenic species including inorganic iAsIII and iAsV , monomethylarsonic acid (MMA), dimethylarsinic acid (DMA) and trimethylarsine oxide (TMAsO) by hydride generation atomic absorption spectrometry (HG-AAS) were investigated in this work. All these species can be converted to volatile compounds. i.e. arsane and its methylated...

See also: similar author names
1 Kaňa, Adam
1 Káňa, Antonín
Interested in being notified about new results for this query?
Subscribe to the RSS feed.