Determination of arsenic by UV-photo-chemical generation of its volatile specie with AAS detection
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F15%3A10331087" target="_blank" >RIV/00216208:11310/15:10331087 - isvavai.cz</a>
Výsledek na webu
<a href="https://web.natur.cuni.cz/analchem/isc-mac/" target="_blank" >https://web.natur.cuni.cz/analchem/isc-mac/</a>
DOI - Digital Object Identifier
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Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Determination of arsenic by UV-photo-chemical generation of its volatile specie with AAS detection
Popis výsledku v původním jazyce
The work was focused on the development of analytical method for determination of arsenic in water sample using of its volatile compounds generation. The method involves the combination of flow injection analysis, UV-photochemical generation of volatile compounds of arsenic and atomic absorption. Attained absorbance was very low after the optimization. In next step, the influence of selected interferents on UV-photochemical generation was investigated with the aim to find a suitable reaction modifier which would improve sensitivity of arsenic determination. Bi3+ was found as the best reaction modifier for its persisting effect. The activation with concentration of 10 mg L-1 of Bi3+ increases the absorbance of arsenic approximately eleven times compared to signals without activation. The limit of detection achieved was 18 mu g L-1, sensitivity was 1.144x10(-3) L mu g(-1), repeatability was 4.5 % (relative standard deviation) and linear dynamic range was 60-500 mu gL(-1).
Název v anglickém jazyce
Determination of arsenic by UV-photo-chemical generation of its volatile specie with AAS detection
Popis výsledku anglicky
The work was focused on the development of analytical method for determination of arsenic in water sample using of its volatile compounds generation. The method involves the combination of flow injection analysis, UV-photochemical generation of volatile compounds of arsenic and atomic absorption. Attained absorbance was very low after the optimization. In next step, the influence of selected interferents on UV-photochemical generation was investigated with the aim to find a suitable reaction modifier which would improve sensitivity of arsenic determination. Bi3+ was found as the best reaction modifier for its persisting effect. The activation with concentration of 10 mg L-1 of Bi3+ increases the absorbance of arsenic approximately eleven times compared to signals without activation. The limit of detection achieved was 18 mu g L-1, sensitivity was 1.144x10(-3) L mu g(-1), repeatability was 4.5 % (relative standard deviation) and linear dynamic range was 60-500 mu gL(-1).
Klasifikace
Druh
D - Stať ve sborníku
CEP obor
CB - Analytická chemie, separace
OECD FORD obor
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Návaznosti výsledku
Projekt
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Návaznosti
S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2015
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název statě ve sborníku
PROCEEDINGS OF THE 11TH INTERNATIONAL STUDENTS CONFERENCE "MODERN ANALYTICAL CHEMISTRY"
ISBN
978-80-7444-036-6
ISSN
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e-ISSN
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Počet stran výsledku
7
Strana od-do
110-116
Název nakladatele
CHARLES UNIV, FAC SCIENCE
Místo vydání
PRAGUE 2
Místo konání akce
Prague
Datum konání akce
22. 9. 2015
Typ akce podle státní příslušnosti
EUR - Evropská akce
Kód UT WoS článku
000383853900019