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| Description
| - Arsenic is well known as a toxic element that can occur in foodstuffs in several forms. These forms have for humans different toxicity, therefore is total amount of arsenic in the foodstuffs insufficient information. For humans is dangerous accumulation of arsenic in food chains. In the framework of this work was created a procedure for the determination and speciation of arsenic compounds in food samples like fishes, which has been optimized. The procedure involved the use of high performance liquid chromatography (HPLC) method and detection by atomic fluorescence spectrometry with hydride generation technique (HG-AFS). As comparison method was used mass spectrometry method with inductive coupled plasma (ICP-MS) for determination of total arsenic content. The procedure has been used for the determination of arsenic forms in samples of fishes. Optimization of separation part included the selection of the suitable chromatographic column, the mobile phase and the appropriate testing the pH of mobile phase. For the speciation of arsenic compounds has been selected the column Hamilton-PRP X 100. The mobile phase for separating compounds of arsenic is composed of a mixture of potassium hydrogen phosphate and potassium dihydrogen phosphate. The pH of mobile phase was tested in the range of 5-7. Results have shown that arsenic compounds have been distributed optimally at pH of mobile phase 6.1. Optimization for the detection part included testing of appropriate concentration of hydrochloric acid and sodium tetrahydroborate. Conditions were optimized for the involvement of the apparatus for the analysis of reducible forms of arsenic and for the analysis of not reducible forms of arsenic. The results of the measurements have shown that for the analysis of reducible forms of arsenic is the appropriate combination of 1.5 mol/l HCl and 1.2% of NaBH4 and for the analysis of not reducible forms of arsenic 6 mol/l HCl and 1.4% NaBH4.
- Arsenic is well known as a toxic element that can occur in foodstuffs in several forms. These forms have for humans different toxicity, therefore is total amount of arsenic in the foodstuffs insufficient information. For humans is dangerous accumulation of arsenic in food chains. In the framework of this work was created a procedure for the determination and speciation of arsenic compounds in food samples like fishes, which has been optimized. The procedure involved the use of high performance liquid chromatography (HPLC) method and detection by atomic fluorescence spectrometry with hydride generation technique (HG-AFS). As comparison method was used mass spectrometry method with inductive coupled plasma (ICP-MS) for determination of total arsenic content. The procedure has been used for the determination of arsenic forms in samples of fishes. Optimization of separation part included the selection of the suitable chromatographic column, the mobile phase and the appropriate testing the pH of mobile phase. For the speciation of arsenic compounds has been selected the column Hamilton-PRP X 100. The mobile phase for separating compounds of arsenic is composed of a mixture of potassium hydrogen phosphate and potassium dihydrogen phosphate. The pH of mobile phase was tested in the range of 5-7. Results have shown that arsenic compounds have been distributed optimally at pH of mobile phase 6.1. Optimization for the detection part included testing of appropriate concentration of hydrochloric acid and sodium tetrahydroborate. Conditions were optimized for the involvement of the apparatus for the analysis of reducible forms of arsenic and for the analysis of not reducible forms of arsenic. The results of the measurements have shown that for the analysis of reducible forms of arsenic is the appropriate combination of 1.5 mol/l HCl and 1.2% of NaBH4 and for the analysis of not reducible forms of arsenic 6 mol/l HCl and 1.4% NaBH4. (en)
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| Title
| - Determination and Speciation of Arsenic Compounds in Fishes
- Determination and Speciation of Arsenic Compounds in Fishes (en)
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| skos:prefLabel
| - Determination and Speciation of Arsenic Compounds in Fishes
- Determination and Speciation of Arsenic Compounds in Fishes (en)
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| skos:notation
| - RIV/70883521:28110/12:43869331!RIV13-MSM-28110___
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| http://linked.open...avai/predkladatel
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
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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/70883521:28110/12:43869331
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - arsenic compounds, fishes, HPLC, HG-AFS, ICP-MS (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...v/mistoKonaniAkce
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| http://linked.open...i/riv/mistoVydani
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| http://linked.open...i/riv/nazevZdroje
| - European symposium on atomic spectrometry 2012 (ESAS 2012) - XXth Slovak-Czech Spectroscopic konference (SCSC) Book of Abstracts
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| http://linked.open...in/vavai/riv/obor
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| http://linked.open...ichTvurcuVysledku
| |
| http://linked.open...cetTvurcuVysledku
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| http://linked.open...UplatneniVysledku
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| http://linked.open...iv/tvurceVysledku
| - Fišera, Miroslav
- Valášek, Pavel
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| http://linked.open...vavai/riv/typAkce
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| http://linked.open.../riv/zahajeniAkce
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| number of pages
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| http://purl.org/ne...btex#hasPublisher
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| https://schema.org/isbn
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| http://localhost/t...ganizacniJednotka
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| is http://linked.open...avai/riv/vysledek
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