Separation Science Plus,
Journal Year:
2024,
Volume and Issue:
7(6)
Published: March 3, 2024
Abstract
Solvent
microextraction
(SME)
is
designed
to
selectively
isolate
desired
analytes
while
minimizing
the
presence
of
interfering
substances
in
extracted
sample.
There
are
different
approaches
from
which
single‐drop
(SDME)
can
be
amalgamated
with
various
analytical
methods
enhance
its
functionalities
and
improve
analysis
compounds
like
gas
chromatography,
liquid
chromatography
amplify
sensitivity,
selectivity,
capacity
detect
trace
amounts
complex
matrices.
The
review
focuses
on
intricacies
solid‐phase
elucidates
operational
principles.
Additionally,
it
explores
types
SDMEs,
detailing
their
respective
benefits,
drawbacks,
potential
applications
future.
A
typical
explanation
construction
working
hollow
fiber‐liquid
phase
as
well
has
been
discussed.
SMEs
medical
biomedical
fields
food
environmental
purification
water,
organic
pollutants,
drug
analysis,
screening
new
drugs
have
discussed
also
illustrated
tabular
form.
pros
cons
both
techniques
given
a
manner
broad
comparison
between
advanced
SME
provides
direction
for
monitoring,
safety,
refining
impurities
water
samples.
comprehensive
overview
current
progress,
recent
obstacles,
future
possibilities
an
appropriate
manner.
Despite
numerous
promising
advancements,
utilization
remains
challenging
field.
Journal of Chromatography A,
Journal Year:
2023,
Volume and Issue:
1707, P. 464291 - 464291
Published: Aug. 8, 2023
Sample
preparation
is
a
key
step
in
most
analytical
methods,
generally
regarded
as
the
least
green
of
entire
procedure.
The
existing
metrics
assess
greenness
sample
techniques
through
evaluation
whole
procedure:
including
sampling,
preparation,
and
final
detection/quantitation.
Such
inclusion
method
makes
assessing
sustainability
newly
developed
technique
quite
challenging,
many
aspects
not
solely
linked
to
are
unavoidably
considered.
Thus,
an
alternative
metric
that
can
explicitly
exclusively
evaluate
proposed.
simple;
it
reports
result
with
clock-like
diagram,
displaying
outcome
main
parameters
total
score.
This
new
differentiate
closely
related
microextraction
approaches
terms
sustainability.
also
open-source
be
used
by
downloading
Excel
sheet
provided.
Analytical Chemistry,
Journal Year:
2024,
Volume and Issue:
96(5), P. 2227 - 2235
Published: Jan. 25, 2024
Determinations
of
micro/nanoplastics
(MNPs)
in
environmental
samples
are
essential
to
assess
the
extent
their
presence
environment
and
potential
impact
on
ecosystems
human
health.
With
aim
provide
a
sensitive
method
with
simplified
pretreatment
steps,
cooling-assisted
solid-phase
microextraction
(CA-SPME)
coupled
gas
chromatography–mass
spectrometry
(GC-MS)
is
proposed
as
new
approach
quantify
mass
concentrations
MNPs
water
soil
samples.
The
herein
CA-SPME
offers
unique
advantage
integrating
thermal
decomposition
enrichment
signature
compounds
into
one
step.
Poly(methyl
methacrylate)
(PMMA)
was
used
model
substance
verify
performance
this
work.
Theoretical
insights
demonstrated
that
pyrolysis
rate-determining
step
during
extraction
process
PMMA
effectively
decomposed
at
350
°C
an
estimated
incubation
time
13
min.
Eight
were
identified
products
by
CA-SPME-GC-MS
use
DVB/CAR/PDMS
coating,
wherein
methyl
methacrylate
considered
best
indicator
dimethyl
2-methylenesuccinate
selected
confirmation
compound.
Under
optimized
conditions,
exhibited
wide
linearity
(0.5–2000
μg
for
5–1000
soil)
high
sensitivity,
limits
detection
0.014
0.28
soil,
respectively.
Finally,
successfully
applied
determinations
real
satisfactory
recoveries
attained.
only
required
employment
filter
membrane
analysis,
while
analyzed
directly
without
any
pretreatment.
solvent-free
approach,
straightforward
operation,
sensitivity
show
great
analysis
different
