Research output: Contribution to journal › Article › peer-review
An automated continuous homogeneous microextraction for the determination of selenium and arsenic by hydride generation atomic fluorescence spectrometry. / Shishov, Andrey; Wieczorek, Marcin; Kościelniak, Paweł; Dudek-Adamska, Danuta; Telk, Anna; Moskvin, Leonid; Bulatov, Andrey.
In: Talanta, Vol. 181, 01.05.2018, p. 359-365.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - An automated continuous homogeneous microextraction for the determination of selenium and arsenic by hydride generation atomic fluorescence spectrometry
AU - Shishov, Andrey
AU - Wieczorek, Marcin
AU - Kościelniak, Paweł
AU - Dudek-Adamska, Danuta
AU - Telk, Anna
AU - Moskvin, Leonid
AU - Bulatov, Andrey
PY - 2018/5/1
Y1 - 2018/5/1
N2 - An automated continuous homogeneous microextraction approach based on a flow system has been developed and coupled with a hydride generation atomic fluorescence spectrometry system (HG-AFS). The developed approach was applied for the determination of trace arsenic and selenium in environmental water and liver samples. The nonanoic acid was investigated as a switchable hydrophilicity solvent (SHS) for homogeneous microextraction of As(III) and Se(IV) complexes with pyrrolidinedithiocarbamate (PDC). The procedure involved on-line mixing ammonium PDC (aqueous phase), sodium nonanoate (aqueous phase) and acid sample solution resulting in the formation of SHS (nonanoic acid) dispersed into the acid aqueous phase. By this continuous process, analytes complexes with PDC were formed and extracted into the fine SHS droplets followed by retention into a monolithic column packed with block of porous PTFE. Finally, the retained complexes were eluted with NaOH solution and delivered to the HG-AFS system. The limits of detection, calculated from a blank test based on 3σ were 0.01 μg L−1 for both analytes.
AB - An automated continuous homogeneous microextraction approach based on a flow system has been developed and coupled with a hydride generation atomic fluorescence spectrometry system (HG-AFS). The developed approach was applied for the determination of trace arsenic and selenium in environmental water and liver samples. The nonanoic acid was investigated as a switchable hydrophilicity solvent (SHS) for homogeneous microextraction of As(III) and Se(IV) complexes with pyrrolidinedithiocarbamate (PDC). The procedure involved on-line mixing ammonium PDC (aqueous phase), sodium nonanoate (aqueous phase) and acid sample solution resulting in the formation of SHS (nonanoic acid) dispersed into the acid aqueous phase. By this continuous process, analytes complexes with PDC were formed and extracted into the fine SHS droplets followed by retention into a monolithic column packed with block of porous PTFE. Finally, the retained complexes were eluted with NaOH solution and delivered to the HG-AFS system. The limits of detection, calculated from a blank test based on 3σ were 0.01 μg L−1 for both analytes.
KW - Arsenic
KW - Continuous homogeneous microextraction
KW - Flow analysis
KW - Hydride generation atomic fluorescence spectrometry
KW - Selenium
KW - Switchable hydrophilicity solvent
KW - SYSTEM
KW - HPLC-FLD DETERMINATION
KW - BISMUTH
KW - FLOW
KW - PHASE
KW - EXTRACTION
KW - INJECTION
KW - LIQUID-LIQUID MICROEXTRACTION
KW - SAMPLES
KW - ANTIMONY
UR - http://www.scopus.com/inward/record.url?scp=85041449044&partnerID=8YFLogxK
U2 - 10.1016/j.talanta.2018.01.033
DO - 10.1016/j.talanta.2018.01.033
M3 - Article
AN - SCOPUS:85041449044
VL - 181
SP - 359
EP - 365
JO - Talanta
JF - Talanta
SN - 0039-9140
ER -
ID: 28688768