Anal. Methods Environ. Chem. J. 5 (4) (2022) 77-86
Research Article, Issue 4
Analytical Methods in Environmental Chemi s try Journal
Journal home page: www.amecj.com/ir
AMECJ
microextraction
Roman Grigorievich Sirotkina,*, Elena Valerievna Elipashevaa, Alexander Vladimirovich Knyazeva,
and Viktoriya Alekseevna Bobrovaa
a Lobachevsky S tate University of Nizhny Novgorod - National Research University (UNN), Nizhny Novgorod, Russian Federation
AB S TRACT
4
+
+4
4
4
4
Keywords:
ARTICLE INFO:
Email:
1. Introduction
.
. The control
4
[7]
[8].
4
4
4
78 Anal. Methods Environ. Chem. J. 5 (4) (2022) 77-86
4
4
)
4
.
than in water
2. Materials and methods
2.1. Microextraction technique
4
) in
.
2.2. Chromatographic conditions
Schema 1. 4
) in water
with
2.3. Reagents
2.4. Other Equipment
3. Results and discussions
3.1. Stabilityoftetrauoroborateion(BF4
-)
4
on the temperature 4
4
. The
Fig. 1. 4
3.2. Eectofultrasonicirradiationtime
4
not change further
3.3. Eectofdierentextractantsandionpair
reagents
.
r
r
+)
4
)] extraction.
3.4. Eectofionpairreagentconcentration
Table 1.4
QAB )% ,К )R
chloroform 1,2-dichloroethane carbon tetrachloride dichloromethane
)
)
)
)
)
)
)
444)
Fig. 2.
Anal. Methods Environ. Chem. J. 5 (4) (2022) 77-86
Fig. 3.
Fig. 4.
4
+
3.5. Detection limits
min
. The
min.
3.6. Syntheticwastewatersanalysisandeectof
diverse anions
4
.
Table 2.
Parameter name Value
4
4
min ×
×7
Table 3.
Anal. Methods Environ. Chem. J. 5 (4) (2022) 77-86
3.7. Example of was te waters analysis and
recoveriesofBF4
-
4
.
4
4
are
.
Fig. 5a.
4
4
4
Fig. 5b.
4
4
4
84
4. Conclusion
4
4
. The
5. Acknowledgment
6. References
Table 5.4
Original, mg L-1 Added, mg L-1 Found, mg L-1 Recovery, %
)
× )
× )
× )
)
× )
× )
× )
)
× )
× )
× )
Anal. Methods Environ. Chem. J. 5 (4) (2022) 77-86
Table 4.
Component
Concentration, mg L-1
Sample № 1 Sample № 2 Sample № 3
* ))
* × × )
* × × )
* × × )
)
4
4
)))
4
Anal. Methods Environ. Chem. J. 5 (4) (2022) 77-86
