Analytical Chemistry, volume 90, issue 10, pages 6323-6331

Multielement Determination of Trace Heavy Metals in Water by Microwave-Induced Plasma Atomic Emission Spectrometry after Extraction in Unconventional Single-Salt Aqueous Biphasic System

Samarina Tatiana O 2
Ilin Dmitry V 1
Publication typeJournal Article
Publication date2018-04-18
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor7.4
ISSN00032700, 15206882, 21542686
Analytical Chemistry
Abstract
For the first time liquid-liquid extraction was used for the preconcentration of heavy metals prior to their determination in water by microwave-induced plasma atomic emission spectrometry (MP-AES). Extraction of Pb(II), Cd(II), Co(II), Ni(II), Zn(II), and Cu(II) was performed in unconventional aqueous biphasic system (ABS) formed by addition of hydrophobic solid salt, namely, tetrahexylammonium bromide, to aqueous sample, with neither organic solvents nor salting-out agents being used. The metal ions were quantitatively recovered with 4-(2-pyridylazo)-resorcinol (PAR). The extract was diluted with ethanol/HCl and introduced directly into an MP-AES instrument. The factors influencing extraction (pH, reagent concentration, phase contact time, etc.) and MP-AES detection parameters were studied and optimized. For the developed method, limits of detection of 1.3, 4.9, 0.06, 1.2, 4.2, and 3.2 μg L-1 were obtained for cadmium, cobalt, copper, nickel, lead, and zinc, respectively, providing from 60- to 500-fold improvement as compared with the analysis without preconcentration. The method was applied for the analysis of two certified reference materials (CRM) of wastewater and surface water as well as the samples of well and seawater. Coupling MP-AES with ABS extraction significantly extends the capabilities of the method, especially for the analysis of high salinity waters.

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Smirnova S. V. et al. Multielement Determination of Trace Heavy Metals in Water by Microwave-Induced Plasma Atomic Emission Spectrometry after Extraction in Unconventional Single-Salt Aqueous Biphasic System // Analytical Chemistry. 2018. Vol. 90. No. 10. pp. 6323-6331.
GOST all authors (up to 50) Copy
Smirnova S. V., Samarina T. O., Ilin D. V., Pletnev I. V. Multielement Determination of Trace Heavy Metals in Water by Microwave-Induced Plasma Atomic Emission Spectrometry after Extraction in Unconventional Single-Salt Aqueous Biphasic System // Analytical Chemistry. 2018. Vol. 90. No. 10. pp. 6323-6331.
RIS |
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TY - JOUR
DO - 10.1021/acs.analchem.8b01136
UR - https://doi.org/10.1021%2Facs.analchem.8b01136
TI - Multielement Determination of Trace Heavy Metals in Water by Microwave-Induced Plasma Atomic Emission Spectrometry after Extraction in Unconventional Single-Salt Aqueous Biphasic System
T2 - Analytical Chemistry
AU - Smirnova, Svetlana V
AU - Samarina, Tatiana O
AU - Ilin, Dmitry V
AU - Pletnev, Igor V
PY - 2018
DA - 2018/04/18 00:00:00
PB - American Chemical Society (ACS)
SP - 6323-6331
IS - 10
VL - 90
SN - 0003-2700
SN - 1520-6882
SN - 2154-2686
ER -
BibTex |
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@article{2018_Smirnova,
author = {Svetlana V Smirnova and Tatiana O Samarina and Dmitry V Ilin and Igor V Pletnev},
title = {Multielement Determination of Trace Heavy Metals in Water by Microwave-Induced Plasma Atomic Emission Spectrometry after Extraction in Unconventional Single-Salt Aqueous Biphasic System},
journal = {Analytical Chemistry},
year = {2018},
volume = {90},
publisher = {American Chemical Society (ACS)},
month = {apr},
url = {https://doi.org/10.1021%2Facs.analchem.8b01136},
number = {10},
pages = {6323--6331},
doi = {10.1021/acs.analchem.8b01136}
}
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Smirnova, Svetlana V., et al. “Multielement Determination of Trace Heavy Metals in Water by Microwave-Induced Plasma Atomic Emission Spectrometry after Extraction in Unconventional Single-Salt Aqueous Biphasic System.” Analytical Chemistry, vol. 90, no. 10, Apr. 2018, pp. 6323-6331. https://doi.org/10.1021%2Facs.analchem.8b01136.
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