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rdf:type
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Description
| - The capability of in situ trapping of selenium and arsenic hydrides within a bare and modified (Pd, Pt, Ir and Re) tungsten tube atomiser (WETA) was investigated by electrothermal atomic absorption spectrometry and by a radiotracer technique using Se-75 radionuclide. Low efficiency of trapping (below 5%) was found within the bare tungsten tube. On the other hand, modification with 100 mug of Pt, Ir and Re, respectively, enhanced significantly the efficiency of trapping. Platinum-treated tubes were very efficient at collecting hydrides in the low temperature range of 100-200 degreesC, reaching efficiency close to 100%. Iridium- and rhenium-treated tubes were capable of trapping hydrides in the high temperature range of 700-900 degreesC, approaching an overall efficiency of 10%. Palladium modifier caused fatal deterioration of the tungsten tube. Low- and high-temperature mechanisms of trapping on the inner tube surface were seen, which were probably related to the low temperature dissociative chemisorpt
- The capability of in situ trapping of selenium and arsenic hydrides within a bare and modified (Pd, Pt, Ir and Re) tungsten tube atomiser (WETA) was investigated by electrothermal atomic absorption spectrometry and by a radiotracer technique using Se-75 radionuclide. Low efficiency of trapping (below 5%) was found within the bare tungsten tube. On the other hand, modification with 100 mug of Pt, Ir and Re, respectively, enhanced significantly the efficiency of trapping. Platinum-treated tubes were very efficient at collecting hydrides in the low temperature range of 100-200 degreesC, reaching efficiency close to 100%. Iridium- and rhenium-treated tubes were capable of trapping hydrides in the high temperature range of 700-900 degreesC, approaching an overall efficiency of 10%. Palladium modifier caused fatal deterioration of the tungsten tube. Low- and high-temperature mechanisms of trapping on the inner tube surface were seen, which were probably related to the low temperature dissociative chemisorpt (en)
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Title
| - Investigation of in situ trapping of selenium and arsenic hydrides within a tungsten tube atomiser.
- Investigation of in situ trapping of selenium and arsenic hydrides within a tungsten tube atomiser. (en)
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skos:prefLabel
| - Investigation of in situ trapping of selenium and arsenic hydrides within a tungsten tube atomiser.
- Investigation of in situ trapping of selenium and arsenic hydrides within a tungsten tube atomiser. (en)
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skos:notation
| - RIV/68081715:_____/01:25010014!RIV/2003/AV0/A25003/N
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http://linked.open.../vavai/riv/strany
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
| - P(GA203/98/0754), Z(AV0Z4031919)
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http://linked.open...iv/cisloPeriodika
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/68081715:_____/01:25010014
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - graphite furnace; absorption spectrometry; atomization (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
| - GB - Spojené království Velké Británie a Severního Irska
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
| - Journal of Analytical Atomic Spectrometry
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...ocetUcastnikuAkce
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http://linked.open...nichUcastnikuAkce
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http://linked.open...vavai/riv/projekt
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http://linked.open...UplatneniVysledku
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http://linked.open...v/svazekPeriodika
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http://linked.open...iv/tvurceVysledku
| - Marek, Petr
- Dočekal, Bohumil
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http://linked.open...n/vavai/riv/zamer
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issn
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number of pages
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