Comparison of interference in chemical, electrochemical and UV-photochemical generation methods of volatile Se species

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F18%3A10368974" target="_blank" >RIV/00216208:11310/18:10368974 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1039/c7ja00208d" target="_blank" >https://doi.org/10.1039/c7ja00208d</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/c7ja00208d" target="_blank" >10.1039/c7ja00208d</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Comparison of interference in chemical, electrochemical and UV-photochemical generation methods of volatile Se species

Popis výsledku v původním jazyce

We present a comparison of interference in three methods of generation of volatile Se species to compare their performance with regard to matrix effects. The effects of selected hydride forming elements, transition metals and electrolytes are quantified and the similarities and differences between the techniques are compared for individual interferents. The possibility that Co(II), Cr(III) and Ni(II) could be used to increase the response in UV-photochemical generation of volatile Se species is discussed. It was found that the increased sensitivity in the presence of Ni(II) is not due to the increased efficiency of generation but due to processes in the gaseous phase. In general, increased Se signals resulting from modified reactions were associated with alternative vapour generation methods. Electrochemical vapour generation suffers from permanent interference effects located on the cathode, but these were not observed with chemical and UV-photochemical vapour generation. Sb(III) interfered more severely than As(III) irrespective of the method used.

Název v anglickém jazyce

Comparison of interference in chemical, electrochemical and UV-photochemical generation methods of volatile Se species

Popis výsledku anglicky

We present a comparison of interference in three methods of generation of volatile Se species to compare their performance with regard to matrix effects. The effects of selected hydride forming elements, transition metals and electrolytes are quantified and the similarities and differences between the techniques are compared for individual interferents. The possibility that Co(II), Cr(III) and Ni(II) could be used to increase the response in UV-photochemical generation of volatile Se species is discussed. It was found that the increased sensitivity in the presence of Ni(II) is not due to the increased efficiency of generation but due to processes in the gaseous phase. In general, increased Se signals resulting from modified reactions were associated with alternative vapour generation methods. Electrochemical vapour generation suffers from permanent interference effects located on the cathode, but these were not observed with chemical and UV-photochemical vapour generation. Sb(III) interfered more severely than As(III) irrespective of the method used.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10406 - Analytical chemistry

Projekt

<a href="/cs/project/GA14-23532S" target="_blank" >GA14-23532S: Generování a prekoncentrace těkavých sloučenin pro atomovou absorpční a atomovou fluorescenční spektrometrii</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Analytical Atomic Spectrometry

ISSN

0267-9477

e-ISSN

—

Svazek periodika

33

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

118-126

Kód UT WoS článku

000419383000008

EID výsledku v databázi Scopus

2-s2.0-85040196984