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| rdf:type
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| Description
| - Radioisotopes carbon 14 and chlorine 36 were used to elucidate the environmental role of trichloroacetic acid (TCA) formerly taken to be a herbicide and a secondary air pollutant with phytotoxic effects. However, use of C-14-labeling posed again known analytical problems, especially in TCA extraction from the sample matrix. Therefore-after evaluation of available methods-a new procedure using decarboxylation of [1,2-C-14]TCA combined with extraction of the resultant C-14-chloroform with a non-polar solvent and its subsequent radiometric measurement was developed. The method solves previous difficulties and permits an easy determination of amounts between 0.4 and 20 kBq (10-500 ng g(-1)) of carrier-less [1,2-C-14]TCA in samples from environmental investigations. The procedure is, however, not suitable for direct [Cl-36]TCA determination in chlorination studies with Cl-36.
- Radioisotopes carbon 14 and chlorine 36 were used to elucidate the environmental role of trichloroacetic acid (TCA) formerly taken to be a herbicide and a secondary air pollutant with phytotoxic effects. However, use of C-14-labeling posed again known analytical problems, especially in TCA extraction from the sample matrix. Therefore-after evaluation of available methods-a new procedure using decarboxylation of [1,2-C-14]TCA combined with extraction of the resultant C-14-chloroform with a non-polar solvent and its subsequent radiometric measurement was developed. The method solves previous difficulties and permits an easy determination of amounts between 0.4 and 20 kBq (10-500 ng g(-1)) of carrier-less [1,2-C-14]TCA in samples from environmental investigations. The procedure is, however, not suitable for direct [Cl-36]TCA determination in chlorination studies with Cl-36. (en)
- Radioizotopy uhlík 14 a chlor 36 byly použity k objasnění role kyseliny trichloroctové dříve považované za herbicid a sekundární atmosférický pollutant s fytotoxickými účinky. Užití značení uhlíkem 14 však poukázalo znovu na známé analytické problémy, zejména extrakci z matrice vzorku. Proto byla vyvinut nový postup užívající dekarboxylaci [1,2-14C]TCA kombinovanou s extrakcí výsledného 14C-chloroformu nepolárním rozpouštědlem s jeho následným radiometrickým měřením. Metoda řeší předchozí potíže a dovoluje snadné stanovení množství mezi 0.4 až 20 kBq beznosičové [1,2-14C]TCA ve vzorcích z environmentálních studií. Pro stanovení 36Cl-TCA je třeba její předchozí separace. Jsou uvedeny příklady aplikací. (cs)
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| Title
| - Determination of Trichloroacetic Acid in Environmental Studies Using Carbon 14 and Chlorine 36.
- Stanovení kyseliny trichloroctové v environmentálních studiích užívajících uhlík 14 a chlor 36. (cs)
- Determination of Trichloroacetic Acid in Environmental Studies Using Carbon 14 and Chlorine 36. (en)
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| skos:prefLabel
| - Determination of Trichloroacetic Acid in Environmental Studies Using Carbon 14 and Chlorine 36.
- Stanovení kyseliny trichloroctové v environmentálních studiích užívajících uhlík 14 a chlor 36. (cs)
- Determination of Trichloroacetic Acid in Environmental Studies Using Carbon 14 and Chlorine 36. (en)
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| skos:notation
| - RIV/00020702:_____/06:8P007492!RIV08-GA0-00020702
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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(GA522/02/0874), P(GA526/05/0636), Z(AV0Z50380511)
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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/00020702:_____/06:8P007492
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - decarboxylation method; forest ecosystem; TCA extraction (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
| |
| http://linked.open...in/vavai/riv/obor
| |
| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
| |
| http://linked.open...vavai/riv/projekt
| |
| http://linked.open...UplatneniVysledku
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| http://linked.open...v/svazekPeriodika
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| http://linked.open...iv/tvurceVysledku
| - Schröder, P.
- Gryndler, M.
- Uhlířová, Hana
- Matucha, M.
- Forczek, S.
- Rohlenová, J.
- Fuksová, K.
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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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| is http://linked.open...avai/riv/vysledek
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