Journal of Hazardous Materials Advances,
Год журнала:
2023,
Номер
12, С. 100375 - 100375
Опубликована: Сен. 27, 2023
Atmospheric
organic
aerosols
(OAs)
are
among
the
most
complex
environmental
matrices
known.
Given
OAs
have
well
documented
atmospheric
and
health
effects,
it
is
crucial
to
understand
complexity
composition
of
this
matrix.
On
quest
unravel
information,
advanced
analytical
approaches
been
developed
for
characterization
complexity.
This
Perspective
revisits
important
state-of-the-art
multidimensional
strategies,
namely
those
that
use
a
second
or
third
dimension
in
spectroscopic,
spectrometric,
chromatographic
methods,
targeted
untargeted
profiling
from
both
outdoor
indoor
environments.
insight
also
comments
on
major
challenges
ahead
concerning
analysis,
including
processing
extraction
chemical
information
voluminous
amount
data
generated
approaches.
TrAC Trends in Analytical Chemistry,
Год журнала:
2024,
Номер
175, С. 117718 - 117718
Опубликована: Апрель 16, 2024
Comprehensive
two-dimensional
gas
chromatography
(GC×GC)
is
a
mature
analytical
technique
with
far
greater
separation
capability
than
conventional
one-dimensional
methods.
Atmospheric
organic
aerosols
are
comprised
of
diverse
range
substances
which
challenge
analysis,
and
for
the
method
has
proved
very
suitable.
The
review
outlines
basic
principles
separation,
instrumentation,
including
detectors.
Time-of-flight
mass
spectrometry
offers
many
advantages,
especially
unknown
mixtures,
included
use
low
high
energy
electron
impact
ionisation.
available
methods
data
reduction
analysis
outlined.
GC×GC
may
be
used
in
either
targeted
or
untargeted
modes,
studies
have
covered
wide
analytes,
compound
groups.
Most
common
hydrocarbons,
polycyclic
aromatic
hydrocarbons
(PAH),
but
other
work
oxygenates,
chlorinated
nitrogen
compounds,
industrial
chemicals
consumer
products
sampled
across
environments.
Rapid Communications in Mass Spectrometry,
Год журнала:
2025,
Номер
39(13)
Опубликована: Апрель 1, 2025
Atmospheric
particulate
matter
(PM)
is
a
complex
mixture
with
wide
range
of
sources,
but
only
limited
proportion
can
be
identified
by
existing
analytical
techniques.
Comprehensive
two-dimensional
gas
chromatography-mass
spectrometry
(GC
×
GC-MS)
couples
the
advantages
on
high
resolution,
sensitivity,
and
peak
capacity
chromatography,
together
mass
accuracy
acquisition
frequency
time-of-flight
(TOFMS).
GC
GC-MS
has
been
gradually
applied
analysis
environmental
organic
pollutants.
This
review
introduces
principles
MS
discusses
its
application
compounds
in
atmospheric
PM
last
two
decades,
so
as
to
provide
an
outlook
future
trends
this
research
frontiers.
The
synthesizes
findings
for
analyzing
pollutants
PM,
covering
operational
coupling
TOFMS
enhance
speed.
significantly
improved
identification
PM-associated
offering
superior
separation,
capacity,
detection
sensitivity.
technique
enabled
discovery
previously
unresolvable
enhanced
source
apportionment
PM.
Despite
advantages,
widespread
studies
hindered
challenges
such
data
processing,
instrument
cost,
standardization
issues.
offers
separation
pollutants,
making
it
invaluable
applications.
Emerging
technologies,
machine
learning,
will
capabilities
broaden
