TrAC Trends in Analytical Chemistry,
Journal Year:
2021,
Volume and Issue:
143, P. 116398 - 116398
Published: July 23, 2021
Liquid
phase
micro-extraction
(LPME)
of
metals
has
showed
its
potential
for
sample
preparation
in
environmental
analysis.
In
particular,
the
incorporation
ionic
liquids
to
LPME
(IL-LPME)
gotten
increasing
interest
due
their
unique
properties
as
organic
salts
liquid
at
room
temperature.
last
years,
IL-LPME
evolved
more
efficient
and
selective
extraction
methods
thanks
development
task
specific
liquids,
deep
eutectic
solvents.
ILs
have
been
implemented
main
modalities:
SDME,
DLLME
HFLPME,
resulting
new
versions
these
techniques.
this
review
we
analyzed
discussed
latest
developments
done
metals,
advantages
limitations,
well
fields
future
development.
Microchemical Journal,
Journal Year:
2019,
Volume and Issue:
152, P. 104384 - 104384
Published: Nov. 1, 2019
Over
the
past
decade,
deep
eutectic
solvents
(DES)
have
been
widely
studied
and
applied
in
sample
preparation
techniques.
Until
recently,
most
of
synthesized
DES
were
hydrophilic,
which
prevented
their
use
extraction
aqueous
samples.
However,
after
2015
studies
on
synthesis
application
hydrophobic
(HDES)
has
rapidly
expanded.
Due
to
unique
properties
HDES
i.e.
density,
viscosity,
acidity
or
basicity,
polarity
volatility,
good
extractabilities
for
various
target
analytes,
could
be
altered
by
careful
selection
hydrogen
bond
donor
(HBD)
acceptor
(HBA)
components,
are
promising
alternatives
traditional
organic
employed
preparation.
Moreover,
possibility
non-toxic
ingredients,
makes
meet
all
standards
green
analytical
chemistry.
Practical
applications
include
conventional
liquid-liquid
extraction,
several
types
liquid-phase
microextraction,
as
well
solid
phase
extraction.
The
present
review
covers
a
comprehensive
summarizing
available
literature
data
important
physicochemical
playing
key
role
methods,
limitations
challenges
this
area,
perspective
future
described.
Journal of Separation Science,
Journal Year:
2019,
Volume and Issue:
43(1), P. 202 - 225
Published: Nov. 6, 2019
Advances
in
the
area
of
sample
preparation
are
significant
and
have
been
growing
significantly
recent
years.
This
initial
step
analysis
is
essential
must
be
carried
out
properly,
consisting
a
complicated
procedure
with
multiple
stages.
Consequently,
it
corresponds
to
potential
source
errors
will
determine,
at
end
process,
either
satisfactory
result
or
fail.
One
advances
this
field
includes
miniaturization
extraction
techniques
based
on
conventional
procedures
such
as
liquid-liquid
solid-phase
extraction.
These
modern
gained
prominence
face
traditional
methods
since
they
minimize
consumption
organic
solvents
volume.
As
another
feature,
possible
reuse
sorbents,
its
coupling
chromatographic
systems
might
automated.
The
review
emphasize
main
liquid-phase
microextraction,
well
those
upon
use
sorbents.
first
group
currently
popular
single
drop
hollow
fiber
dispersive
microextraction.
In
second
group,
microextraction
in-tube
stir
bar
sorptive
extraction,
micro
by
packed
sorbent
highlighted.
approaches,
common,
aim
determination
analytes
low
concentrations
complex
matrices.
article
describes
some
characteristics,
advances,
trends
miniaturized
techniques,
their
current
applications
food,
environmental,
bioanalysis
fields.
Food Chemistry X,
Journal Year:
2024,
Volume and Issue:
24, P. 101810 - 101810
Published: Sept. 3, 2024
A
novel
ultrasound-assisted
magnetic
solid-phase
extraction
coupled
with
gas
chromatography-mass
spectrometry
(US-MSPE-GC/MS)
was
developed
to
detect
trace
amounts
of
polycyclic
aromatic
hydrocarbons
(PAHs)
in
tomato
paste,
using
a
biochar
adsorbent
derived
from
nectarine
cores.
The
highest
recovery
attained
under
10
mg
mass,
30
min
time,
9
%
(
