Determination of As by UV-photochemical generation of its volatile species with AAS detection
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F16%3A10325547" target="_blank" >RIV/00216208:11310/16:10325547 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1007/s00706-016-1808-5" target="_blank" >http://dx.doi.org/10.1007/s00706-016-1808-5</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s00706-016-1808-5" target="_blank" >10.1007/s00706-016-1808-5</a>
Alternative languages
Result language
angličtina
Original language name
Determination of As by UV-photochemical generation of its volatile species with AAS detection
Original language description
This work was focused on the development of an analytical method for determination of arsenic in liquid (aqueous solutions of arsenite) by UV-photochemical generation of its volatile compounds. The study contains the optimization, method characterisation and also a study of the influence of selected compounds on the signal measured. The method involves a combination of flow injection analysis, UV-photochemical generation of volatile compounds of arsenic in flow injection arrangement and atomic absorption spectrometry using an externally heated quartz tube atomizer. The attained absorbance was very low after the optimization. In the next step, the influence of selected compounds on UV-photochemical generation was investigated with the aim to find a suitable reaction modifier that would improve the sensitivity of arsenic determination. Bi(III) was found as the best reaction modifier not only for causing the increase of the signal of arsenic measured but also for its persisting effect. The activation with concentration of 10 mg dm(-3) of Bi(III) increases the absorbance of arsenic approximately eleven times compared to signals without activation. Following method characteristics were achieved under the optimum experimental conditions: the limit of detection of 18 A mu g dm(-3), the repeatability of 4.5 % expressed as % RSD at 200 A mu g dm(-3), and linear dynamic range 60-500 A mu g dm(-3) of arsenic.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CB - Analytical chemistry, separation
OECD FORD branch
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Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Monatshefte für Chemie
ISSN
0026-9247
e-ISSN
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Volume of the periodical
147
Issue of the periodical within the volume
8
Country of publishing house
AT - AUSTRIA
Number of pages
8
Pages from-to
1447-1454
UT code for WoS article
000380695200017
EID of the result in the Scopus database
2-s2.0-84979680782