Food Additives & Contaminants Part A,
Journal Year:
2024,
Volume and Issue:
41(5), P. 525 - 536
Published: March 26, 2024
Per-
and
polyfluoroalkyl
substances
(PFAS)
analysis
has
become
crucial
due
to
their
presence
in
the
environment,
persistence
potential
health
risks.
These
compounds
are
commonly
used
food
contact
materials
(FCM)
as
a
coating
provide
water
grease-repellent
properties.
One
of
pathways
for
PFAS
enter
human
body
is
either
through
direct
consumption
contaminated
or
indirectly
migration
from
FCM
into
food.
The
purpose
this
study
was
investigate
where
initial
contamination
paper
occurs.
We
analysed
material
consisting
fresh
fibre
secondary
materials,
intended
produce
packaging
PFAS.
samples
were
extracted
23
different
using
targeted
approach
with
LC
tandem
mass
spectrometry
(LC-MS/MS).
This
analytical
technique
detects
specific,
easily
ionisable
high
sensitivity.
However,
one
drawback
that
it
allows
identification
less
than
1%
known
today.
For
reason,
we
combustion
ion
chromatography
(CIC)
determine
content
extractable
organic
fluorine
(EOF)
compare
total
content.
LC-MS/MS
measured
an
average
sum
concentration
0.17
ng
g−1
sample.
Our
research
shows
primary
happens
during
recycling
process
since
all
which
belonged
material.
most
frequently
detected
analytes
PFOA
PFOS,
90%
62%
samples,
respectively,
followed
by
PFBS
(in
29%
samples).
CIC
showed
via
amount
2.7
×
10−4%
content,
whereas
EOF
under
LOD
samples.
result
highlights
complexity
accurate
determination
compounds,
displaying
what
kind
information
chosen
methods
provide.
Journal of Chromatography Open,
Journal Year:
2023,
Volume and Issue:
4, P. 100089 - 100089
Published: July 1, 2023
Poly-
and
perfluoroalkyl
substances
(PFASs)
are
a
family
of
compounds
anthropogenic
origin
that,
as
result
the
strength
C-F
bonds,
possess
excellent
physicochemical
properties
that
make
them
chemically
stable,
resistant
to
degradation
(even
at
high
temperatures);
characteristics
which
have
led
their
use
for
wide
range
applications.
Nonetheless,
counterpart,
PFASs
innate
resistance
chemical,
physical,
and/or
biological
degradation,
increases
persistence
in
environment
also
leads
entrance
food
matrices,
up
point
they
even
been
designated
"forever
chemicals".
This
review
article
pretends
provide
global
vision
current
analytical
methods
determination
techniques
being
used
variety
matrices
(mainly,
environmental,
matrices),
including
occurrence,
with
special
emphasis
works
published
between
2018
2023.
Furthermore,
has
made
challenges
well
advancements
sensor
technologies
made.
Toxics,
Journal Year:
2024,
Volume and Issue:
12(1), P. 75 - 75
Published: Jan. 15, 2024
Major
concerns
have
been
raised
about
human
exposure
to
endocrine-disrupting
chemicals
(EDCs)
during
pregnancy.
Effective
methodologies
for
the
assessment
of
this
are
needed
support
implementation
preventive
measures
and
prediction
negative
health
effects.
Meconium
has
proven
a
valuable
non-invasive
matrix
evaluating
cumulative
xenobiotics
last
two
trimesters
The
study
objective
was
develop
novel
method
determine
presence
in
meconium
perfluoroalkyl
substances
(PFASs),
bisphenols,
parabens,
benzophenones,
EDCs
that
widely
used
manufacture
numerous
consumer
goods
personal
care
products,
including
cosmetics.
Ten
PFASs,
four
benzophenones
were
measured
samples
prepared
by
using
combination
Captiva
Enhanced
Matrix
Removal
(EMR)
lipid
cartridges
with
salt-assisted
liquid–liquid
extraction
(SALLE)
dispersive
microextraction
(DLLME)
before
application
liquid
chromatography–tandem
mass
spectrometry
(LC–MS/MS).
Experimental
parameters
optimized
applying
different
chemometric
techniques.
Limits
detection
ranged
from
0.05
0.1
ng
g−1,
between-day
variabilities
(relative
standard
deviations)
6.5%
14.5%.
validated
matrix-matched
calibration
followed
recovery
assay
spiked
samples,
obtaining
percentage
recoveries
89.9%
114.8%.
then
employed
measure
compounds
not
previously
studied
20
samples.
proposed
analytical
procedure
yields
information
on
utero
selected
EDCs.
Talanta,
Journal Year:
2025,
Volume and Issue:
unknown, P. 127944 - 127944
Published: March 1, 2025
Per-
and
polyfluoroalkyl
substances
(PFAS)
are
persistent
environmental
contaminants
known
for
their
toxicity,
mobility,
bioaccumulation.
Efficient
sample
preparation
analysis
of
these
compounds
critical
monitoring.
In
this
study,
a
novel
analytical
methodology
is
presented,
integrating
dynamic
headspace
extraction
(DHS)
thermal
desorption
(TD)
with
one-dimensional
(1D)
two-dimensional
(2D)
gas
chromatography-time-of-flight
mass
spectrometry
(GC-TOFMS)
the
quantification
target
volatile
semi-volatile
PFAS.
Such
an
approach
also
enables
non-targeted
screening
other
classes
in
aqueous
samples.
The
method
was
optimized
validated
nine
(semi-)volatile
PFAS,
including
fluorotelomer
alcohols
(FTOHs),
acrylate
(FTAc),
alkyl
sulfonamides
(FOSA,
FOSE).
Three
types
adsorbent
materials
were
evaluated
during
enrichment
step,
among
which
Tenax
TA
demonstrated
superior
recovery
reproducibility.
Extraction
volumes
1
L,
2
5
L
tested,
providing
most
consistent
recoveries
achieved
detection
limits
as
low
2.17
ng
L-1,
indicating
high
sensitivity.
case
study
involving
water
from
industrial
site,
enhanced
separation
capabilities
GC×GC-TOFMS
enabled
identification
115
additional
environmentally
relevant
compounds,
halogen-containing
monoaromatics,
polycyclic
aromatic
hydrocarbons.
This
integrated
DHS-TD-GC×GC-TOFMS
provides
robust
suitable
solution
targeted
PFAS
monitoring,
combining
sensitivity
selectivity
simultaneous
-
particularly
advantageous
feature
monitoring
chemicals
real
Journal of Agricultural and Food Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 19, 2025
In
the
current
work,
a
modified
glassy
carbon
electrode
(GCE)
with
excellent
conductivity
was
prepared
by
drop-coating
carboxymethyl
cellulose
(CMC)
and
multiwalled
nanotubes
(MWCNTs)
on
GCE
surface.
On
this
basis,
two
highly
selective
molecularly
imprinted
sensors
(MIP@PFDA/modified
MIP@PFOS/modified
GCE)
were
separately
obtained
in
situ
electropolymerization
of
o-phenylenediamine
(o-PD)
perfluorodecanoic
acid
(PFDA)
perfluorooctanesulfonic
(PFOS)
as
templates.
Under
optimal
conditions,
sensitive
quantification
methods
linearity
ranges
0.1–1000
ng/mL
0.05–900
developed
via
differential
pulse
voltammetry
using
[Fe(CN)6]3–/4–
redox
probe.
The
detection
limit
values
PFDA
PFOS
low
0.041
0.015
ng/mL,
respectively.
Both
also
presented
great
stability
selectivity
coexistence
other
interferences.
Lastly,
three
food
samples
utilized
to
verify
validity
applicability
recoveries
89.97%–112.27%,
confirming
its
potential
for
per-
polyfluoroalkyl
substances
(PFASs)
monitoring
complex
matrix.
