Determination of arsenic by UV-photo-chemical generation of its volatile specie with AAS detection

Result code in 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>
Result on the web
<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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Result language
angličtina
Original language name
Determination of arsenic by UV-photo-chemical generation of its volatile specie with AAS detection
Original language description
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).
Czech name
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Czech description
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Project
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Continuities
S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
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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Number of pages
7
Pages from-to
110-116
Publisher name
CHARLES UNIV, FAC SCIENCE
Place of publication
PRAGUE 2
Event location
Prague
Event date
Sep 22, 2015
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
000383853900019

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